Feature: 1. High‑quality speaker unit, stereo sound gives you a different audio‑visual enjoyment, high‑efficiency digital power amplifier‑high conversion rate, bright and transparent sound. 2. Easy to use, built‑in USB sound card decoding, directly through the USB interface, you can play music without an audio cable. 3. Unique digital sound processing technology‑effectively improve the sound of digital signal source hairy. 4. USB power supply, no need for external power adapter, hot plug, no software drive, free to listen. 5. Rugged and durable, the USB speakers are made of high-quality ABS and metal materials, which are not easily damaged and have a long service life. Specification: Item Type: USB Speaker Material: ABS+Metal Weight: Approx. 232g / 8.2oz Product Size: Approx. 12.6x4.3x6cm / 5.0x1.7x2.4in Input Voltage: USB 5V Output Power: 2 x 3W Power Interface: USB interface Charging Cable Length: Approx. 69cm / 27.2in Signal to Noise Ratio: ≥70dB Frequency Response Range: 100Hz-20KHz. Package List: 1 x USB Speaker Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.