Esperanza EH238K Bluetooth In-Ear Headphone TWS Black

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