ourdoor usb portable speaker ST-666
Parameter:
◆material: metal ◆power output: 2×3W ◆size:50 x 188mm
◆Frequency range: 75HZ-20KHz ◆With FM function
◆S/N: ≥90db
◆speaker: 4∩ 3W
◆Charge voltage: DC 5V
◆With 3.5mm audio jack
◆music form: MP3, WMA, WMV, ASF