Wireless headphone 2.4Ghz wireless transmission of high-fidelity acoustic: High anti-interference ability OEM also welcome

2.4Ghz wireless HeadphoneFeature:                                                                                             

1.Two-way 2.4 G short wave frequency hopping technique (global), radio traffic band automatically scans, address to code, and easy to realize match any matching, go where used, which really realize a wheat "teacher"2. The clean health3. Any matching, and not to completing colour in stock and registration, 1000 the same school (different) at the same time the classroom without using a crosstalk 4. Equipment management more convenient5. Energy saving and environmental protection, green products, need not save frequent change of battery, polluting the environment6. Small and portable, suitable for with you wherever you go7. The USB interface lithium battery, filling a usable 8 hours  Specifications:Frequency response:20HZ-20KHZ Speaker Impedance:32ohmDriver Unit: 40mm  HI-FI speakerRated Power:20mWPower Handing Capability:40mWSensitivity:119bB±3dBUnit size: 150*115*35mm(130*75*35mm)   Carrier frequency:2.4G                                                                 Accept range:10meters 360°                                                      FM way:GFSK                                                                      Transmission power:4dBM                                                                  Frequency response:20HZ-20KHZ                                                      Speaker Impedance:32ohmDriver Unit: 40mm  HI-FI speakerSampling rate:48K/DVD SNR:80dBDistortion range:0.1%                                                     Microphone impedance:≤2.2kohm                                       Frequency response:≈8KHZ Unit size: 150*115*35mm