Rapoo H1080 Wireless Rf Headphones Microphone 2400MHz-2483.5MHz 2.4G anti-interference ability, ensure perfect sound quality as CD Up to 10 meters range to provide high-fidelity audio transmission signal , enjoy wireless music in study room or living room Two built-in headset antenna relative to the vertical, complementary receiver, the chip will automatically switch the signal strength using the best antenna to receive data, thus ensuring the reliability of mobile data reception. wireless audio from any interference, to enjoy the full range of 360  Barrier-free listening. The small USB receiver connected to port (USB receiver is directly decoded) without having to install cumbersome procedures of the code, plug and play, 3 seconds transient response, more compatible with the latest windows7 system. Headphones built-efficient lithium-ion rechargeable batteries, no need to worry about frequent battery replacement at any time. Charge 2 hours you can enjoy wireless music with the headset for up to 8 hours.