DOSS Bluetooth Headphone On-Ear, Enhanced Bass HiFi Stereo Wireless Headset, Lightweight and Soft Memory-ProteinCushions, Built-in Mic and Wired Mode for Phones, TV, PC, Tablets and More Features Enhanced Superior Sound Proprietary 40mm large-aperture drivers provide clear, vibrant sound with boosted bass. Soft Memory-Protein Cushions provides comfortable fit and passive noise isolation that provides you a crisp, natural, and immersiveHi-Fi sound experience with CSR chip. Light Weight and Comfortable design The long haul lightweight design, combined with soft memory-protein cushions and flexible headband will be more comfortable to wear and easier to take with you wherever yougo. Latest Bluetooth 4.2 with AptX Technology Bluetooth 4.2 ensure a more smooth, stable connection with your sound source for hours of wireless listening up to10 meters of listening range and is widely compatible with most Bluetooth-enabled devices. You also can keep the music playing by plugged in 3.5mm Audio Cable without any battery consumption. Long playtime Built-in a Li-Ion rechargeable battery allows music onthe go up to 12 hours playtime with a quick charge in 2 hours, and your hands-free call with a built-in microphone. As a wired headphone with the provided 3.5mm audio cable, the headphones will never power off. Simple Control Answer/hang up the call, play/pause music, adjust volume, or change track with the simple control located on the headphones. Exquisite Package for Perfect Gift Comes with an elegant package. Perfect gift for birthday Christmas day. _ Specifications Bluetooth version: V4.2 Frequency response: 20Hz-20KHz Power input: DC5V ± 0.25V Impedance: 32±15% Sensitivity: 105 | Doss Be3 Bluetooth Wireless Headphone Aptx Built In Mic On Ear Wired