S9 Wireless Bluetooth 3.0 Sport Headphones with Microphone

S9 Wireless Bluetooth 3.0 Sport Headphones with Microphone
  • Detail

    Specification :


    Bluetooth version: Bluetooth V3.0 
    Audio range: 2.402GHZ - 2.480GHZ ISM Band 
    Receiving sensitivity:-80dBm 
    Wireless transmission standard: CLASS 2 
    Channel 79channels of 1Mhz BW 
    Connection: point to point 
    Transmission range: about 10M 
    Transmission speed: 57 to 723Kb/S 
    Stereo compression ratio 44.1/48kHz 
    Polymer lithium-ion battery: 3.7V 100mA 
    Charging time: 1-2 hours 
    Charging power supply: computer USB 5V