1. Connect the speakers to the audio output interface;
2. Open the speaker switch;
3. Volume adjustment can listen via MP3, MP4, notebook computers, desktop computers and portable volume regulator control.
4. Speaker Charging: connect to the PC (laptop or desktop) or using a mobile phone charger via the USB port, when the light on the Beatles speakers from red to green, charging is completed, you can use about 6 to 8 hours.