This is a must have product for music lovers on the move. Once youve used it youll wonder how you ever lived iDance BLUE300 offers a rich bass and full sound. BLUE300 is like no other. Never before has Bluetooth technology been combined in such a dynamic and innovative manner. For those on the move BLUE300 offers complete flexibility - wherever you are and whatever you are doing. Listen to music from your mobile phone PC or media player in headphone or speaker mode. All the traditional features of a Bluetooth headset are present plus the inbuilt microphone offers speakerphone capability. Wireless Bluetooth technology for an over ear headphones. Make and receive calls on the move. 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. Battery: rechargeable lithium ion battery 3.7V 300mA. Charging thru computer USB interface/output DC5V/500mA charger. Tiny size: 17L x 9W x 18H cm. Color: Yellow.