Esperanza EH237W Bluetooth In-Ear Headphone TWS White

Bluetooth profiles: A2DP, AVRCP, HFP, HSP | Talk time: 4 h | Included cable : USB C / USB C PD | Battery type: Built-in battery | User guide: Yes | Continuous audio playback time: 3 h | Battery operated: Yes | Maximum operating distance: 10 m | Transmitter frequency: 2.4 GHz | Battery voltage: 5 V | Volume control: Buttons | USB connectivity: Yes | Volume control: Yes | Frame material: Plastic | Connectivity technology: Wireless | Control type: Touch | Battery technology: Lithium polymer (LiPo 4S) | Recommended usage: Travel/recreation | Weight: 70 g | Wearing style: In-ear | Product colour: White | Headphone frequency: 20 - 2000 Hz | USB cable length: 0.2 m | Bluetooth version: 5.3 | Ear coupling: Intraaural | Bluetooth: Yes | Product type: Wireless headphones | Battery capacity: 30 mAh | Cables included: Charging cable | Battery capacity: 230 mAh | Number of batteries supported: 1