1.Superb Sound Quality Headset With High Quality Chip For Best Stereo Sound And Superb Bass Sound. Clear High & Low Volume.Make You Enjoying The Music True Wirelessly !<br />2. Built in 40 mAh Lithium Polymer Battery And Come With Intelligent Charging Box With High Capacity Lithium Battery Provides 3-4 Times Charges For Continuous Use｣ｬ Make You Enjoy Music or Watching TV&films For a Longer Time｣ｬMake Sure More Convenient To Carry&charge When You Mountaineering｣ｬ Hiking｣ｬ Biking or Other Outdoor Sports.<br />3. Easy to Use Technology with Voice Notification of Incoming Calls and Phone Numbers. With Easy to Use Buttons Allows /Play/Pause On All Your Music Tracks as well as All Phone Wse Without Reaching Your Phone｣ｬSuper Quick Pairing With all Android and IOS Devices.<br /> Larger Bluetooth Range Make the Mini Headphones Extraordinary｣ｬ Up to 30ft Bluetooth Range in The Open Space｣ｬPlugging Your Phone in To Listen To Music is Unnecessary.You Can Share It With People Around You.<br />4.Optimized For Extra Comfort and Fit Better in Ear｣ｬ Ease the Problem of Popping Out｣ｬSoft Material To Protect Ears｣ｬ Make Your Phone Call and Music Time More Comfortable.Sweatproof Construction is Perfect For Sports｣ｬRunning｣ｬJogging & Gym Exercise｣ｬWatching TV｣ｬor Sleep.<br /><br />Specs & Details<br />  Battery capacity(erabuds): 40mAh <br />  Battery capacity(Box):450mAh(Provides 3-4 Times Charges)<br />  Chipset: Airoha AB1511<br />  Adopt the advanced CVC6.0 active noise-cancellation <br />  C