Audio Components 2 Pcs Mini Multimedia Mobile Phone Laptop Desktop Computer Desktop Speakers Features: 1.Small size, easy to carry around. 2. ABS plastic case, durable quality. 3.Accompanying speaker for PC or MP3 or MP4 and notebook. 4. Mini speaker, simple and fashionable design. 5.With 3.5mm port and USB power interface, the compatibility is strong. 6. Adjust the volume with knob, and choose the volume that suits you. 7.Excellent sound quality, good sound recovery effect and 3W high output power. Net weight: about 210g Product material: ABS material and electroplating Speaker specification: 52MM external magnetic 33W Output rate: 3Wx2 Power supply voltage: USB 5V0.5V Cable length: 1.3M Frequency: 130Hz-18KH Signal to noise ratio80dB Note: If you want to connect a mobile phone, MP3 or 4, etc. you need to supply power to the speakers at the same time. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.