Features:1. This speaker owns excellent sound quality，with perfect audio design.2. Bluetooth audio transmission and handsfree call.3. Bluetooth selfie while listening to music4. FM Radio5. Prompt tone for any work status6. TF card playing mp3/wav format music7. Inbuilt high-capacity li-ion battery for power supply，long standby time How to use1.pls charge over 2 hours before use，the red light will be lit when it is charging.pls make sure it is on when its use，it will enter into bluetooth2.mode by default when no TF Card inserts into speaker Specifications:1.Output power:3W2.Sensitivity ratio:360mv3.SNR:80db4.input power supply:DC5v/500mA5.Frequency:120HZ-20KHZ6.Bluetooth version:bluetooth 2.1+EDR7.colors:Black， white， red， blue， goldenNote it is watch style，not real watch can not display time Package includes:1*watch style speaker，1*maunal