Havit H633BT - wireless on-ear headphones, black

Headphone frequency: 20 - 20000 Hz | Package contents: Audio Cable x1 | Warnings: Read the user manual before use. | Warnings: The product contains batteries which must be disposed of correctly. | Package contents: Headphones | Width: 170 mm | Folding design: Yes | Ear coupling: Circumaural | Driver diameter: 40 mm | Continuous audio playback time: 20 h | Product colour: Black | Warnings: Do not disassemble or modify the product yourself. | Bluetooth: Yes | Recommended usage: Music / calls | Connectivity technology: Wireless | Volume control: Button | Recommended gender: Unisex | Standby time: 175 h | USB connector: USB type C | Bluetooth range: 10 m | Headset type: Binaural | Charging source: USB | Talk time: 19 h | Height: 195 mm | Depth: 76 mm | Wearing style: Head-band | Battery capacity: 350 mAh | Bluetooth version: 5.3 | Weight: 185 g | Product type: Headset | 3.5 mm jack input: 1 | Battery recharge time: 2.5 hours | Impedance: 32 Ω