USB DC 5V Bluetooth Audio USB DC 5V Bluetooth Audio features: - You can connect it with your smartphone - Power: DC 5V micro USB - Speaker: 4 ~ 8 Ohm - Audio Jack: 3.5mm - SD card: support MP3 / WMA / WAV / FLAC format - The transmission distance could be up to 10m - Size: 50 x 40 mm Code M0067 ✗ Out-of-Stock Price €5.79