Speaker with 3W power for mobile phone, provide users with a holder to watch movies or listen music, convenient as a holder and speaker at the same time; Four induction points, supports multi-point connected; No need for any matching settings; Supports almost all iOS devices and Android cell phones; Cell phone player devices: When in standby mode or open mode, the iPhone and other devices with external speakers are placed in the right direction, you can start the speaker and enjoy the music when your phone loud speaker turns on; The induction zone is on the both front left and right sides, aligned with one side can normally play; Volume Adjustment: To adjust the volume, simply by changing the phone's volume, the speaker will automatically adjust the output volume; Operation Audio: 3.5mm diameter jack is wired most of the phone's audio port, using the wiring can be a better bass player; Power: Built-in 1500mAh lithium battery, press the power button it means shut down > standby > turn on > shut down; Automatically turn on / off: When the speaker under standby mode, it can automatically turn on when detects music and enter into standby mode when music stop after 1 minutes; Under power on mode, the speaker will automatically shut down after music stop for 10 minutes.