Bluetooth wireless stereo headphone with Microphone and remote control

Specification: Bluetooth specification:Bluetooth V4.1 +EDR Bluetooth profiles supported: HSP,HFP,A2DP and AVRCP Operating distance: 10meters Talk time:24 hours Music playing time:22 hours Charging time: about 2-4 hours Standby time: 250 hours Battery: polymer lithium -ion battery 3.7 V, 250 MA/h Charge input voltage: DC 5V Speaker:φ40mm Sensitivity: 108dB SP.L at 1K Hz Frequency range:20Hz - 20,000Hz Impedance: 32 ohms Rated power: 100mW Power capacity: 1000mW Item ZY-0309