Cheap 2.4GHz Region-free Stereo Wireless Headphones With FM Scan Radio

Brand Name: OEM Model Number: GD-RF8139 Style: Headband Communication: Wireless Connectors: 2.4 Use: Portable Media Player Function: Microphone Place of Origin: Guangdong China (Mainland) cataloge: Wireless Headphones with FM scan radio THD: <=0.5% S/N Ratio: 95 dB receive sensitivity: -83dBm dynamic range: 88dB Packaging & Delivery Packaging Detail: Inner packing: 1 unit/color box Color box size:24x15x26cm Qty./ carton: 4 units/carton Carton size: 49.5X31.5X27.5cm N.W/CTN: 2.8kg G.W./CTN:4.85kg Delivery Detail: samples for stock,orders for 20-25 work days Specifications FM radio (optional) can connect directly with TV, PC, DVD, VCD, MP3, MP4 audio source welcome:OEM/ODM 2.4GHz Region-free Stereo Wireless Headphones Model NO. GD-RF8139 The new outlook design and latest technology 2.4G stereo Hi-Fi wire less headphones. New enjoy of  rate is industry leading 1:1 transmission Adopt digital circuit and imported chip, strong anti-interference ability high fidelity, the transmission range is up to 70 meters in open space. Can continue to use for 6 hours by rechargeable lithium battery. widely applicable to PC, TV, DVD,iphone VCD, MP3, MP4 and other major audio sources  SPECIFICATIONS :1) frequency range: 2.4GHz-2.5Ghz 2) FM radio   (88-108mhz) 3) frequency response: 20-20KHz 4) separation: >70dB  5) dynamic range: 88dB6) THD: <=0.5% 7) S/N Ratio:  95 dB8) receive sensitivity: -83dBm9) transmission range: 70 meters  10) power supply (transmitter): DC5V(included) 11) power supply (headphone):   900mA/H rechargeable NI-MH battery      Property:2.4GHZ  wireless headphone scheme,with 2.4GHZ USB-DONGLESpeaker diameter: φ40 milimeters Impedance: 32 OhmsSensitivity: 108dB S.P.L.at 1KHz;Rated power:20mWAggregate capability:50mWFrequency Response:20Hz-20,000HzMicrophone Unit:φ6*5mmImpedance:≤2.2KOhmsFrequancy Response:30Hz-16,000HzOperating voltage:4.5V