Microlab T1 Wireless Bluetooth Headphone, Black Latest Bluetooth 4.0 wireless technology, this headset with back-hang style Foldable design provides maximum portability Great Colors Selections: Black, White, Pink, Yellow Blue Colors available, With its built in Microphone, this system functions as an headset for your video conferencing and communication application Play Back Easy to Use control Panel, Rechargeable battery for 12 hours play time, 20 hours stand by via USB interface, includes additional 3.5mm Stereo Jack audio input NFC Bluetooth Noise-Cancellation Stereo Headphone, CD sound quality with aptX function chrome for Music Stream & Hands Free Calling w/ Extended talk and play time, 40 hrs. standby time, Built-in Mic A2DP, AVRCP (AC wall charger not included) Bluetooth 4.0 with HFP 1.6 A2DP 1.2 and AVRCP 1.4, Bluetooth stereo audio using A2DP for wireless music streaming Connectivity technology: Bluetooth 4.0, NFC