• 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.
• Premium Ø40mm Stereo Drivers; Frequency Range:

• 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.
• Premium Ø40mm Stereo Drivers; Frequency Range: 20hz-20khz
• Active Noise Cancellation
• 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
• Works seamlessly with Apple and Android devices; Operating Range: about 10m