Main Features Of Portable Speaker: 1. Very easy to use， built-in microphone and convenient speakerphone， Volume up / Volume down / fast forward (skip) / Backward / Pause / Play / Power buttons2.Water resistant loud speaker and built-in mic for both outdoor and indoor use3.High definition Bluetooth 3.0 RF wireless connectivity with 6 hours play time4.With a suction cup that can be attached to wall or any flat surface， also can suck on back side of iPad or other tablet become a stand ，Support TF Card5.Built-in Bluetooth 3.0 RF wireless module.6. Compatible with all Bluetooth-enabled devices (2.1 and over).7. Built-in lithium battery， USB cable included for charging. Specification Of Portable Speaker : 1. Bluetooth support: V 3.0 +EDR 2. Range: 10 meters 3. Transmitting frequency: 2.4G HZ 4. Power Voltage: DC5V 5. Battery Capacity: 700mAh lithium 6. Driver Unit: 40MM*1 7. Output: 3w 8. Dimension: 83*82*62mm