KISONLI A-909 USB 2.0 Stereo Wired Speaker

Expert Features Clear Stereo Sound with 6W Output The Kisonli A-909 delivers rich and balanced sound through dual 3W full-range drivers , making it ideal for music, movies, and video calls. USB-Powered Convenience With USB 2.0 power and 3.5mm AUX input , the A-909 requires no external power adapter—just plug into your PC or laptop and enjoy instant audio playback. Compact and Minimalist Design Its lightweight plastic ABS body in a clean black finish fits easily on your desk, saving space while providing clear, distortion-free sound. Wide Device Compatibility Supports all devices with USB and AUX ports including desktops, laptops, mobile phones (via adapters), and portable audio players . Plug and Play Operation No drivers or software required—simply connect the USB cable for power and the 3.5mm jack for audio. Ideal for quick setups at home, in offices, or classrooms. Reliable Performance and Durability Engineered with 4Ω impedance , ≥58dB signal-to-noise ratio , and a distortion rate of ≤1% across 80Hz–20kHz , ensuring clean audio playback across frequencies. No Battery This speaker is not battery-powered , making it a reliable, always-on desktop companion without the need to recharge Expert Specs Feature Specification Brand Kisonli Model A-909 Speaker System 2.0 Channel Stereo Output Power 3W x 2 (6W RMS) Peak Power 3.5W Power Source USB DC 5V (No Battery) Connectivity USB (Power) + 3.5mm AUX (Audio) Impedance 4Ω SNR (Signal to Noise) ≥58dB Distortion ≤1% (80Hz–20kHz) Frequency Response 20Hz–20kHz Built-in Mic No Display Screen No Voice Control No Material ABS Plastic Color Black Tweeter None Remote Control No Memory Card Support No App Control Not Supported Use Cases PC, Home Office, Multimedia, Study