Vakoss SK-839BX headphones/headset Wired & Wireless Head-band Music Bluetooth Black

Input voltage (earpieces): 5 V | Depth: 190 mm | Battery type: Built-in battery | Battery operated: Yes | Microphone type: In-line | Weight: 184 g | Bluetooth profiles: A2DP | Charging time: 120 min | Microphone frequency: 100 - 10000 Hz | Bluetooth profiles: HFP | Talk time: 7 h | Headphone frequency: 20 - 20000 Hz | Bluetooth version: 5.0 | Frequency band: 2.402 - 2.480 GHz | Bluetooth profiles: HSP | Charging source: DC | Width: 180 mm | Sound pressure level (max): -58 dB | Headphone sensitivity: 100 dB | Battery technology: Lithium-Ion (Li-Ion) | Continuous audio playback time: 6 h | Microphone in: Yes | Bluetooth: Yes | Wireless range: 10 m | Recommended usage: Music | Microphone sensitivity: -58 dB | Control unit type: In-line control unit | Microphone direction type: Omnidirectional | Headset type: Binaural | Product colour: Black | Quantity: 1 | Maximum input power: 20 mW | Wearing style: Head-band | Connectivity technology: Wired & Wireless | Battery capacity: 300 mAh | Height: 82 mm | Product type: Headphones | Cables included: Audio