【Dual Mic Noise Cancelling】New bee M50 bluetooth earpiece employs Dual Mic active Digital Signal Processing (DSP)noise cancelling technology that eliminates ambient noise to ensure the quality of the call even in noisy places, enable you to enjoy the music and call freely. The mute button provides a polite and private communication environment especially with sensitive or difficult information. Note: The mute function is only supported on mobile phones. 【Super Long Battery Life】M50 Bluetooth headset only 2-3H charging time, 24H talk time, 20H music playing, 1440H standby. The powerful battery life saves the trouble of frequent charging and brings convenience to your life. 【Comfortable Wearing】New bee wireless earpiece is designed with lightweight of only 16g it doesn't place any burden on your ears. Flexible microphone and rotatable ear hook arm swivels including 3 optional eartips ensure a prefect wearing in either ear. 【Wide Compatibility】New bee Handsfree headset with latest Bluetooth 5.2 technology provides fast and stable signal transmission and can be paired with two Bluetooth devices. Connect distant reach to 49 feet. compatible with all iOS and Android system smartphones including iPhone, iPad, Samsung, Sony, Motorola, LG, laptop and Others. 【Don't Hesitate to Order】If you have any problem or suggestion, please kindly contact us, 24 hours customer services and professional technical team are standing by. bluetooth earpiece