Esperanza EH239K Bluetooth In-Ear Headphone TWS Black

Wearing style: In-ear | Headphone frequency: 20 - 2000 Hz | Control type: Touch | Battery operated: Yes | USB connectivity: Yes | Frame material: Plastic | Battery type: Built-in battery | Bluetooth version: 5.3 | Bluetooth profiles: A2DP, AVRCP, HFP, HSP | Volume control: Buttons | Number of batteries supported: 1 | Bluetooth: Yes | Cables included: Charging cable | Product type: Wireless headphones | Battery capacity: 30 mAh | Maximum operating distance: 10 m | Transmitter frequency: 2.4 GHz | USB cable length: 0.2 m | Continuous audio playback time: 3 h | Volume control: Yes | Talk time: 4 h | Connectivity technology: Wireless | Battery technology: Lithium polymer (LiPo 4S) | Product colour: Black | Weight: 90 g | Recommended usage: Travel/recreation | Battery capacity: 230 mAh | Battery voltage: 5 V | User guide: Yes | Ear coupling: Intraaural | Included cable : USB C / USB C PD