USAMS Earphones with BH11 Charging Case, True Wireless, White USAMS's True Wireless Earphones BH11 offer top quality sound quality and excellent ear application. They are compatible with tablets, smartphones and every device with Bluetooth. They have a charging case for storing, protecting and rechairing the headphones. The case is recharged by a USB Type-C charging cable. With ergonomic and delicate design, they offer comfortable fit even after many hours of use. -Docratic connection to Smartphone via Bluetooth — Excellent sound quality -De -Setable battery -capacity -Exclaration for comfortable fit -The touch of the touch to control music & calls Specifications BT version: 5.1 Connection range: up to 10m Speaker Diameter: 10mm Speaker Sensitivity: 110 +/- 3DB Speaker Impedance: 32o Speaker Frequency Response: 20Hz ~ 20kHz Earbud battery capacity: 35mAh Earbud Charging Time: About 1.5 hours Case Battery Capacity: 300mAh Case Charging Time: About 1.5 hours Earbud weight: about 3.5g x2 Case Weight: About 28g Play Time: About 5 hours Call time: About 5 hours Waiting Time: About 80 hours Charging Case Input: 5V Dimensions: 60.3 x 45.5 x 28.2mm Color: White Package Contents Earbuds Charging case USB Type-C charging cable Manual