Description: Bluetooth 5.1: Adopted Bluetooth 5.1 technology, it provides fast and stable pairing with any iOS and Android smart phones, tablets, laptops, MP3 players from up to 33 feet away. Built-in Mic: Built-in HD microphone offers crystal clear audio and natural sound, allowing you to enjoy high quality music and clear phone calls wherever. Easy to Use: Easy-to-reach buttons, quick to answer the calls, play or stop the music, also it SUPPORT Siri and voice assistants. Voice alerts battery level, connection status, mute/unmute status let you enjoy real hands-free. Adjustable: Rotatable earpiece fits perfectly for your left or right ear. Lightweight, it does not cause any burden to your ears, providing lasting wearing comfort, good for drivers or businessmen. Extendable earhook for easy wearing on a wide range of ear shapes. Battery: Only 1.5h charge time, 10h music time and talk time, you can choose to buy earpiece only or with charging case, which allows you use earphone for all days. Compatible for IOS/Android cell phones, PC, Laptop and other Bluetooth-enabled devices. Specification: Material: Plastic Electronic components Bluetooth Version: Bluetooth V5.1 Bluetooth Range: ≤10m Support Bluetooth Profile: A2DP1.3 HFP1.6 HSP1.2 AVRCP1.6 D11.3 Earpiece Battery Capacity: 60mAh Talk Time: 10H Charging Time: 1.5H Noise Reduction: CVC8.0 Waterproof Rate: IPX7 Size Chart: Earpiece Only: 125x74x18mm/4.92x2.91x0.71inch package With Charging Case: 150x81x28mm/5.91x3.19x1.10inch package Package Includes: 1 Set Bluetooth Earpiece Note: Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!