Hot-Verkauf USB-Lautsprecher

LX-M909 USB mini speaker ; 1, can read SD / MMC Card / U disk, support playback of MP3 format files; 2, computer, mp3/mp4, mobile phone audio companion; 3, mellow sound sweet, transparent clarity, tone soft, structured; 4, stadium-shaped bass radiator, outstanding bass; Five, high-efficiency digital power amplifier, sound quality pure beautiful sound stirring; 6, small size and easy to carry,in travelling, sports may be put in backpack; 7, dual power supply mode USB5V and curing 450mA Li-ion rechargeable battery, USB power when the battery will automatically be converted to electricity and change mode; Output Power: 2.5W Sensitivity: 600mv Impedance: 4 OHM Frequency Response: 90Hz 20kHz SNR: ≥ 70dB Distortion: ≤ 0.1% (1W 1kHz) Power Supply: USB/DC5V, 450mA Li-ion rechargeable battery (dual power)