Esperanza EH220 Bluetooth headphones Headband, Black

Headphone sensitivity: 105 dB | Continuous audio playback time: 5 h | Wireless range: 10 m | Bluetooth: Yes | Microphone sensitivity: -42 dB | Headphone frequency: 20 - 20000 Hz | Frequency response: 30-16000 Hz | Bluetooth version: 5.0 | Talk time: 7 h | Battery technology: Lithium Polymer (LiPo) | Bluetooth profiles: AVRCP | Headset type: Binaural | Connectivity technology: Wireless | Battery capacity: 200 mAh | Power requirements: 5V DC | Product colour: Black | Wearing style: Head-band | Bluetooth profiles: HFP | Bluetooth profiles: HSP | Impedance: 32 Ω | Battery recharge time: 2 h | Driver unit: 4 cm | Bluetooth profiles: A2DP