2.4G Wireless Headphone (WH-2470)

Brand Name: Mindsonic Model Number: WH-2470 Style: Headband Communication: Wireless Connectors: USB & 3.5mm Use: computer, TV, DVD, MP3 etc Function: Bluetooth,2.4G Place of Origin: Zhejiang China (Mainland) Usage: Wireless communication Packaging & Delivery Packaging Detail: color box Delivery Detail: 30 days Specifications 2.4G Wireless Headphone USB transmitter Built-in microphone Lithium battery Operating distance: 10m 2.4G Wireless Headphone  Features:*High quality driver and microphone*Plug and play intelligent connection*Dual Receive AntennaSpecifications:Speaker Driver Diameter: 30mmFrequency Response: 20~22,000HzImpedance: 32 OhmsPower Input: 20mWTHD:<5%Lithium batteryRated current:≈48mAOperating time:Approx×5 HoursCharging time:Approx×25 minutesCharging cable:USB ext DC cableTransmitter specification:Operating voltage:5vRated current:50mAPlug:USBSize:54*19.3*7mmMicrophone:Dimension:Φ6.0×3.0mmFrequency Response:100-8KHZ Sensitivity(S.P.L):-52dB