This portable Bluetooth speaker from Bush holds 6 hours of wireless battery life. Perfect for slipping into your bag and taking on a picnic or blasting out tunes at a house party. Use with iPod, iPhone and iPad. You can even plug in devices that dont have Bluetooth using an AUX cable. Hands free call answer function. Easily charge up using the included USB cable. The aluminium case gives it premium look, while the built-in passive radiator makes the sound even better. 2 speakers. Compatible with iPod, iPhone and iPad. Bluetooth compatible. 3.5mm AUX in. 4 watts. 2 amplifier channels. Frequency 100Hz-20000Hz. Bass reflex. General information Model number: bts-37. Size H16.6, W3.4, D5.8cm. Speaker diameter 4.5cm. Power from USB. USB cable included. Li-Ion batteries (included). Battery life: 6 hours. (not included).