The iDance BLUE100 series couples an eye-catching slim Dj headphones disco inspired design with outstanding comfort and pure wireless sound. Utilizing a 40mm neodymium driver unit enjoy bluetooth stereo and hands free. Experience better than corded sound. One headset for music and calls with premium sound quality that make sure that you are clearly understood. BLUE100 always READY to go always ready to Rock. Wireless Bluetooth technology for an over ear headphones. Make and receive calls on the move. Slim headband design. 10 meters operating range. Advanced noise reduction. 40mm Speaker Driver. High definition built in microphone. Rechargeable Lithium battery. Standby time of up to 75 hours. Continuous usage time up to 8 hours. User Friendly interface. Compatible most Bluetooth enabled devices. V2.1+EDR Bluetooth edition. CSR Bluetooth solution. Frequency response: 20HZ-20KHZ. 40mm Neodymium Speaker driver. Impedance 32 ohms. Sensitivity 89 db. Battery: rechargeable lithium ion battery 3.7V 300mA. Charging through computer USB interface / output DC5V/500mA charger. Tiny size: 15 x 19 x 7cm. Dimensions: 4 x 3 x 2. 9 ounces. Color: Orange.