Esperanza EH238K Bluetooth In-Ear Headphone TWS Black

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