DUDAO U7S Noise Cancelling Hands-free Mono Bluetooth Headset for Mobile Phones with up to 16 Hours of Long Talk Time & 120 Days Long Stand by Time, Ultra-Light Business Bluetooth Headset BT V5.1 For Business Meeting, Office, Driving, Sweat Proof (Army-Print)

The Bluetooth headset was built in 90 mAh battery, it can be fully charged in 1.5H for continuously 16H talking & 120 Days Long Stand by Time.
Bluetooth V5.0: Adopts the latest version of Bluetooth V5.0, compared with old version, it greatly reduces the chance of cutting in & out and provides more stable connection for up to 33 feet away. Also, it can be connected with two devices simultaneously.
Comfortable Wearing: Designed to fit both ears, it is lightweight and comfortable enough to be worn for hours.
True Wireless Headset with Clear Sound: Built in microphone, it enables you to answer & reject calls and mute on the Bluetooth headset. Also, the Bluetooth headset supports voice assistant. The wireless headset, which provides more clear sound and stable connection.
SMART FUNCTION & LONG BATTERY LIFE: Our Bluetooth Earpiece supports Siri voice prompt and mute function, one key to power on and enter pairing mode, 1 to 2 connections. Super long battery life, 180 HOURS standby time, 9 HOURS talking time, 8 HOURS music playing time after full charge. With 33ft (10meters) Bluetooth working range.