Product description Color: black, black white, black red Material: ABS Connection: USB 2.1 with cable Cable length: 1 m Audio connection: AUX 3.5 mm Power supply: DV 5V and USB 5V. Adjustment knob: volume, treble, bass Output power: 3W. Dimensions: approx. 95*115*128mm (main speaker ), 62 * 63 * 75 mm (secondary speakers) Package Contents: 1 x main speaker 2 x side speakers 1. Superior Sound Quality: Enjoy your music through two high-performance speakers. Ensures improved clarity and fidelity. Placing them on either side of the computer allows the sound to reach your left and right ears simultaneously, creating a similar stereo sound. Suitable for listening to music, watching movies or playing games at home or in the office. 2. Unique Design: The rear 3 inch bass speaker produces superior bass sound. And the front airflow keeps the bass sounding smooth and undistorted. 3. Simple operation: Treble and bass independent adjustment, rotating the knob and adjusting, shows the perfect interpretation of all kinds of music. 4. Wide Compatibility: Lightweight and portable, convenient to carry. Suitable for mobile phones, tablets, laptops, PCs, desktop computers and other audio devices. 5. Bluetooth ConnectionBluetooth speaker, 10m range, Quick pairing of any Bluetooth-enabled devices, such as Android phones, iPhone, iPod, etc. If you don't use Bluetooth connection, you can connect the speakers with a 3.5mm Connect AUX cable and on the other side connect an additional connection device for a smartphone, computer, MP3, MP4, TV, etc.