A portable speaker so small you can carry it in your pocket, while still providing unbelievable sound quality thanks to its ingenious design. Twist apart the two ends to expand the speaker and hear the bass arrive! With an AUX connection, you are able to connect any device with a headphone socket such as smartphone, iPad or a laptop. This speaker comes with a built-in rechargeable Lithium battery capable of up to 4 hours music listening and when you need to charge it simply connect it to the USB port of a PC using the USB cable provided or charge it using a USB mains adaptor now commonly available with phones and other devices. 1 speaker. 3.5mm AUX in. 1 amplifier channel. General information Size H4.2, W5.6, D5.2cm. Model number CSPK115RED. Mains operated. Power from USB. USB cable included. Rechargeable batteries (included) . Battery life 4 hours.