Ecoxgear Ecopebble Bluetooth Speaker (blue) With ECOPEBBLE, theres no dock to connect to. It connects wirelessly to your phone, tablet, computer, or other Bluetooth capable device to play music. So you can keep your device with you. EcoPebble features a lithium ion battery that lasts up to seven hours on a single charge. Use it all day long without even having to think of recharging! Featuring an integrated microphone, ECOPEBBLE also can be used as speaker phone. Available in three unique color options, youll have no trouble finding an ECOPEBBLE that matches your unique style.