This dual-mic designed bluetooth earpiece applies ENC and CVC8.0 noise reduction tech, well reduces external distractions and optimizes sound clarity for both the callers and listeners.The LC-B45 Bluetooth headset for cell phone only needs 2 hours fully charged whcih can provide a longer last time to get you through the day, often stretching past 20hrs talk time, 24hrs music playback and continuous 180 days standby. Plus low battery reminder is available.Our bluetooth ear piece is 13g lightweight ergonomic design, fits both your light or right ear, and stays firmly with detachable hook, comfortable enough for hours work or music playback when working at home, office or driving.This ear pieces for cell phone features a built-in V5.0 Bluetooth chip which provides a strong and stable 15meters wireless connection to iPhone, Android cellphones, laptops, tablets, etc. Suitable for trucker drivers, business, office workers, work from home or outside. A carrying case is provided.