Advanced Bluetooth 4.0: Industry-leading CSR bluetooth 4.0 supports A2DP AVRCP HFP and HSP for a fully wireless experience; stream music to your wireless bluetooth headphones from your PC smartphone tablet & more with over a 33-Foot wireless range.</br>Premium ?40mm Stereo Drivers; Frequency Range: 20hz-20khz</br>Active Noise Cancellation</br>18-Hour rechargeable battery: charge your wireless headphones for 3 Hours & enjoy up to 16 hours of playtime (18 Hours talk time) answer incoming calls right on your stereo headphones & your music will automatically resume when you hang up</br>Works seamlessly with Apple and Android devices; Operating Range: about 10m</br></br>Product Description</br></br><b>Wireless Bluetooth Headphones that help you disconnect - literally and figuratively.</b> <br> Escape the everyday with your favorite tunes and audiobooks anytime anywhere. These advanced Bluetooth earphones from B?HM help you disconnect from your surroundings and from the headache of tangled wires. Make an easy lifestyle upgrade and enjoy the latest in Bluetooth technology with these premium cordless headphones. <br> <br> The primary distinction between these headphones and others on the market is the active noise cancellation technology?? which unlike passive noise isolating designs??s actively cancels ambient noise for focused listening. <br> <br> <b>Premium Stereo Drivers</b> <br> Want a powerful pair of bass headphones? The two high-end drivers crank out powerful?? thumping bass?? prominent mids and truly sparkling highs. The driver units measure in at 40mm and feature an impressive frequency range of 20hz-20khz. <br> <br> <b>Rechargeable Battery</b> <br> While the built-in 290mAh rechargeable lithium ion battery charges in a