Zen Logic ZL-SMBBK Bluetooth Speaker in Black with Speakerphone Feature, with Bonus Power Bank, Charging Cable and Two Adjustable Wrist Straps. Portable Bluetooth Speaker with high def sound and a wireless range of 30 feet. Features Bluetooth device pairing and handsfree speakerphone function. Powered by included rechargeable Li-ion battery and included charging cable. Includes bonus 2600mAh Powerbank to recharge on the go or for charging other devices.