Description Specifications Mfr Part Number: F10-TWS Features: Single earbud can be used in both ears. Rotatable earbud tip make it dual-directional, fits both ears. Bornd F10 equipped with advanced Bluetooth 5.0 technology Supports HFP, HSP, A2DP, AVRCP, SPP, PBA, can be used to connect Laptop, iPad, iPhone, Android and talk to SIRI. Single charging can maintain earbuds working 3.5Hours. 300mAh Charging Case provides 7 times charging for earbuds True Wireless Stereo design get rid of entangled wire and reduce weight of earbud. Bluetooth version: Bluetooth 5.0 EDR Headphone battery:  Li-polymer 40mAh Charging bin battery:  Li-polymer 300mAh Earbud weight: 4g/0.14oz Package dimension: 4.7 x 3.4 x 1.5 inch/0.25lbs Protocol support: HFP1.7/ HSP1.2/ A2DP1.3/ AVRCP1.6/ SPP1.2/ PBA1.0 Contents: 1 xBluetooth Earbud, 1 xCharging Case, 1 x 10inch USB to Micro Cable, 1 xUser Manual.