Stylish Bluetooth speaker which offers high definition stereo sound and is compatible with all mobile devices that support Bluetooth. It has a wireless connectivity range of over 10 metres and can also be used with an audio cable. Playing time is 3-4 hours and it is easily recharged from a laptop, a power bank or a USB mains adapter. It has a microphone for phone calls and musicplayback can be controlled directly from the speaker. Polaris is presented in a gift box with a Micro-B USB cable, an audio cable and an instruction leaflet. The blue and black speakers engrave to a shiny steel finish and the silver speaker engraves to a natural etch.silver|blue|blackPad Print Speaker – 35mm x 25mm.|Pad Print Gift box – 50mm x 30mm.|Laser Engraving Speaker – 50mm x 25mm.Speaker: Dia 57mm x H 57mm.