Stream your music wirelessly Compact portable design Perfect for your mobile phone or tablet Can also be used as Bluetooth handsfree kit Portable Bluetooth speaker with microphone Signal reach up to 10 m Works on built-in rechargeable battery Up to 400 hours standby, 12 hours handsfree talking time or 3 hours of music streaming on a single charge Non-Bluetooth devices can also be connected via 3.5 mm audio cable Plays music files directly from an inserted microSD-card Specifications Interface: Bluetooth v.2.1 + EDR, Class II, Handsfree profile Bluetooth frequency range: 2.402 GHz – 2.480 GHz Speaker: 40 mm magnet-free, 4 Ohm RMS power output: 3 W Frequency response: 100Hz - 10KHz S/N ratio: 80 dB DC input: MicroUSB 5 VDC up to 1.5 A Battery: rechargeable 400 mAh Li-Polymer USB / audio cable length: 0.2 m Dimensions: D61 x H50 mm Net weight: 240 g System requirements Bluetooth enabled audio source (smartphone, computer, tablet, etc)