Esperanza EH163K Headphones with microphone Headband Black

Product type: headphones with microphone | Battery recharge time: 3 h | Connectivity technology: Wireless | Power requirements: 5V DC | Maximum input power: 100 mW | Talk time: 10 h | Wearing style: Head-band | Product colour: Black | Bluetooth profiles: A2DP | Warnings: Read the user manual before use. | Wireless range: 10 m | Warnings: Do not disassemble or modify the product yourself. | Driver unit: 4 cm | Headphone frequency: 30 - 16000 Hz | Microphone sensitivity: -42 dB | Headphone frequency: 20 - 20000 Hz | Bluetooth: Yes | Battery technology: Lithium Polymer (LiPo) | Bluetooth version: 3.0 | Bluetooth profiles: HSP | Warnings: The product contains batteries which must be disposed of correctly. | Impedance: 32 Ω | Bluetooth profiles: AVRCP | Headset type: Binaural | Headphone sensitivity: 105 dB | Continuous audio playback time: 4 h | Battery capacity: 300 mAh | Bluetooth profiles: HFP