Havit TW982 - TWS wireless headphones, black

Bluetooth version: 5.4 | Oven control type: Touch | Headphone frequency: 20 - 20000 Hz | Headset type: Binaural | Talk time: 4 h | Continuous audio playback time (with charging case): 33 h | Connectivity technology: Wireless | Left earpiece weight: 3.9 g | Charging case dimensions (W x D x H): 58 x 49,6 x 26,5 mm | Left earpiece battery capacity: 40 mAh | Package contents: Headphones | Package contents: Charging case | Wearing style: In-ear | Ear coupling: On-ear | Warnings: Keep away from children. | Headphone sensitivity: 117 dB | Battery operated: Yes | Warnings: Regularly check the condition of the batteries to prevent leaks. | Case weight: 35,8 g | Battery recharge time: 1,5 h | Driver diameter: 13 mm | Warnings: Do not use near sources of heat or flame. | Bluetooth range: 10 m | Impedance: 32 Ω | Built-in microphone: Yes | Bluetooth: Yes | Product colour: Black | Battery capacity (charging case): 400 mAh | Right earpiece weight: 3.9 g | USB Power Delivery (USB PD): Yes | Right earpiece battery capacity: 40 mAh | Product type: Headset | Number of microphones: 1 | Continuous audio playback time: 7,5 h | Recommended usage: Calls/Music