Bluetooth 4.1 Headset, GRANDTAU Wireless Stereo Headphone with Mic, Noise Cancelling, Micro USB Charging, Hands Free, Over-the-head for Music, Car/Truck Driver, Call Center, VoIP, Skype, Cell Phone 1. Bluetooth 4.1 Headset: GRANDTAU headset is the latest Bluetooth 4.1 stereo headphone, whereas most of others on Amazon are Monaural headset. With advanced 4 X noise cancelling technology, the GRANDTAU headset provides you super clear speech by cutting out the background noise. 2. Multipoint Support: 2 Connection Simultaneously, Touch-button call answer /end, redial, volume control and voice dialing. The Bluetooth headset not only for calling , but also can work for listening to music. 3. Comfortable, balanced design: over-the-head style, rotatable microphone for both left and right ear, The ear-muff is cushioned for ultra comfortable and fashion fit. Lightweight designs makes you feel snug even for a extended time wearing. 4. Standby time: up to 220 hours(9 days); Music time: up to 5 hours; Charging time: 2 hours; Roaming freely with 33ft of range for up to 12 hours of continuously talk time 5. What You Get: Bluetooth 4.1 headset , Micro USB Charging cable, English Manual, Our fan-favorite 18-month warranty and friendly customer service