---
product_id: 729032946
title: "Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running"
brand: "monster"
price: "₨110853"
currency: LKR
in_stock: false
reviews_count: 5
category: "Monster"
url: https://www.desertcart.lk/products/729032946-monster-open-free-ac100-open-ear-headphones-bluetooth-5-3
store_origin: LK
region: Sri Lanka
---

# Bluetooth 5.3 fast & stable 16mm dual large drivers 30H ultra-long battery life Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running

**Brand:** monster
**Price:** ₨110853
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Stay aware, stay unstoppable with Monster Open Free AC100!

## Quick Answers

- **What is this?** Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running by monster
- **How much does it cost?** ₨110853 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/729032946-monster-open-free-ac100-open-ear-headphones-bluetooth-5-3)

## Best For

- monster enthusiasts

## Why This Product

- Trusted monster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **AI Noise-Canceling Clarity:** Cut through the noise with smart dual-mic AI noise cancellation—perfect for crystal-clear calls in busy workspaces or cafés.
- • **Unmatched 30-Hour Playtime:** Stay powered through your longest workdays and workouts with an industry-leading 30 hours of wireless freedom—no battery anxiety here.
- • **Immersive Stereo Soundstage:** Dive into rich, crystal-clear audio with deep bass and crisp highs powered by dual 16mm drivers for a premium listening experience.
- • **Open-Ear Comfort Revolution:** Experience all-day wear without ear fatigue or soreness—perfect for multitasking pros who stay connected to their environment.
- • **Seamless Bluetooth 5.3 Connectivity:** Enjoy lightning-fast pairing and ultra-stable connections across all your devices, so you never miss a beat or a call.

## Overview

The Monster Open Free AC100 are open-ear Bluetooth 5.3 headphones featuring dual 16mm drivers for immersive stereo sound, AI-powered noise cancellation for clear calls, and an impressive 30-hour battery life. Designed with earhooks and waterproof materials, they offer all-day comfort and stability for active professionals who want to stay connected to their surroundings while enjoying premium audio.

## Description

Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running

Review: First off, these headphones and the case have a very sleek design! It took a little getting used to putting them on as they are not your typical earphones. But once on, they stay put and feel both comfortable and light on the ear. This works perfectly for my needs, as a mother who would like to hear my kids around me when they're playing, while doing things around the home! I can listen to audiobooks, etc and even make calls while still being fully aware of my surroundings. I usually get headaches after using my AirPods, by using these I did not get any! So I feel more comfortable wearing them, knowing they aren't as bad on my health. The sound was great as well over my ear- it's like a speaker over the ear without blocking out any outside noise. That's exactly what they are supposed to do and the main reason why I bought them!
Review: I love these earphones. They are comfortable on my ears and it's so easy to use. The battery life on them is phenomenal. I've had them for somewhere between 6 to 8 months, and I use them every day. Super happy that I purchased them and I definitely recommend them keep in mind. That these earphones do allow you to hear your surroundings. So if you're looking for earphones, that's going to block out all noise. These are not them. These allow you to still hear your surroundings. But enjoy whatever you're listening to. And they're also great for conversation On the phone

## Features

- 【Comfort Open-Ear】The Open-ear design of Air conduction earphones helps to achieve true painlessly and harmlessly. No need to put the earbuds in the ear canal, so ears will not feel sore and painful even listening to music for the whole day.
- 【Immersive Stereo Sound Effects】Monster Open Free AC100 Open Ear headphones dive into a world of sonic richness with the expansive soundstage delivered by 16mm large drivers. From deep bass to crisp highs, every nuance of music is brought to life with breathtaking clarity.
- 【 AI Noise-canceling】Monster Open Free AC100 Open ear headphones have built-in AI noise-canceling technology and dual microphones, which adopt environmental noise reduction technology to monitor the sounds around you and instantly produce an opposite signal to reduce background noise. Whether you're in a bustling café or a busy office, background noise fades away, leaving only crystal-clear conversations.
- 【30H Ultra Long Playtime】These air conduction headphones boast an impressive total battery life of 30 hours, allowing for uninterrupted listening sessions throughout the day. With each individual use lasting up to 6 hours, these headphones provide the perfect blend of longevity and reliability. No more battery anxiety.
- 【Advanced Bluetooth 5.3】With advanced Bluetooth headphones 5.3 technology, you can get 2X fast transfer speed (75% higher than the previous generation) and a more stable connection. Wireless headphones will be paired with each other automatically, and just hit on Bluetooth list "Monster Open Free AC100" on your device to connect, avoiding complex operations and saving waiting time. Whether you're pairing with your smartphone, tablet, or laptop, enjoy stable and efficient wireless connections for uninterrupted music enjoyment.
- 【Enhanced Awareness】Seamlessly transition between different environments with Monster Open Free AC100 Open-Ear design. Stay connected to your surroundings while enjoying your favorite tunes with these open ear headphones. Whether you're commuting through busy streets or taking a leisurely stroll in the park, ambient sounds blend seamlessly with your music for an immersive listening experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DP53RM3T |
| Age Range (Description) | Teen, Adult |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 A batteries required. (included) |
| Batteries Included | Yes |
| Batteries Required | Yes |
| Battery Life | 30 Hours |
| Battery cell composition | Lithium Ion |
| Bluetooth Version | 5.3 |
| Compatible Devices | Smartphones, Tablets, Laptops |
| Connectivity Technology | Wireless |
| Control Method | Remote |
| Customer Reviews | 4.0 4.0 out of 5 stars (132) |
| Date First Available | 12 December 2024 |
| Earpiece Shape | earhook |
| Included Components | Wireless Charging Case |
| Includes Rechargeable Battery | Yes |
| Item Weight | 191 g |
| Item model number | E18 |
| Manufacturer | Monster |
| Material | Rubber, Silicone |
| Model | E18 |
| Model Name | E18 |
| Package Dimensions | 13.49 x 11.51 x 4.9 cm; 191 g |
| Specific Uses For Product | Outdoor Activities, Sport |
| Supports Bluetooth Technology | Yes |
| UPC | 810079703463 |
| Water Resistance Level | Waterproof |
| Wireless Communication Technology | Bluetooth |

## Product Details

- **Brand:** Monster
- **Colour:** White
- **Ear Placement:** Open Ear
- **Form Factor:** Open Ear
- **Noise Control:** Active Noise Cancellation

## Images

![Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running - Image 1](https://m.media-amazon.com/images/I/41+tXyO61EL.jpg)
![Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running - Image 2](https://m.media-amazon.com/images/I/413gHSdr+RL.jpg)
![Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running - Image 3](https://m.media-amazon.com/images/I/41mQwULhGGL.jpg)
![Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running - Image 4](https://m.media-amazon.com/images/I/41sIpkbt7UL.jpg)
![Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running - Image 5](https://m.media-amazon.com/images/I/5104zVrjmjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by P***A on 13 January 2025*

First off, these headphones and the case have a very sleek design! It took a little getting used to putting them on as they are not your typical earphones. But once on, they stay put and feel both comfortable and light on the ear. This works perfectly for my needs, as a mother who would like to hear my kids around me when they're playing, while doing things around the home! I can listen to audiobooks, etc and even make calls while still being fully aware of my surroundings. I usually get headaches after using my AirPods, by using these I did not get any! So I feel more comfortable wearing them, knowing they aren't as bad on my health. The sound was great as well over my ear- it's like a speaker over the ear without blocking out any outside noise. That's exactly what they are supposed to do and the main reason why I bought them!

### ⭐⭐⭐⭐⭐ Review
*by J***4 on 7 October 2025*

I love these earphones. They are comfortable on my ears and it's so easy to use. The battery life on them is phenomenal. I've had them for somewhere between 6 to 8 months, and I use them every day. Super happy that I purchased them and I definitely recommend them keep in mind. That these earphones do allow you to hear your surroundings. So if you're looking for earphones, that's going to block out all noise. These are not them. These allow you to still hear your surroundings. But enjoy whatever you're listening to. And they're also great for conversation On the phone

### ⭐⭐⭐⭐⭐ Review
*by L***Y on 22 October 2025*

I wanted a set of open air wireless ear buds for some time. I got these on sale for $30 ten months ago. I do not use them daily. All the features work well. I like being able to hear people talk and the environment around me. The sound quality is fine by my standards. I have had zero connection issues. I have dropped them enough to know they are durable. The case is well made, though a bit big to carry in your pocket. No problems, I would recommend them at the regular price.

## Frequently Bought Together

- Monster Open Free AC100 Open Ear Bluetooth 5.3 Headphones, Wireless Earbuds with Earhooks, Immersive Stereo Sound by 16mm Large Driver, Clear Calls, 30H Playtime, Waterproof Sport Earbuds for Running
- Monster Open Free AC100 Open Ear Headphones, Bluetooth 5.3 Wireless Headphones with Earhooks, Immersive Stereo Sound by Dual Large Driver, Clear Talk, 30H Playtime,Waterproof Sport Earbuds for Running
- Monster Open Ear AC210 Headphones, Bluetooth 5.4 Earphones Stereo Sound, Wireless Headphones 30 Hours Playback, Type-C Charging, HD Clear Calls, Touch Control, IPX5 Waterproof Open Ear Earbuds,White

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**Shop now:** [https://www.desertcart.lk/products/729032946-monster-open-free-ac100-open-ear-headphones-bluetooth-5-3](https://www.desertcart.lk/products/729032946-monster-open-free-ac100-open-ear-headphones-bluetooth-5-3)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-02-13*