Can play the USB disk, TF card MP3 format audio files, can barge to mobile phones, MP3,'t a MP5, PC, with audio output devices like the Iphone, with the function of FM Power amplifier output power: 3 w RMS (THD = 10%) Power amplifier signal to noise ratio: 80 db or higher Input interface: 3.5 mm stereo input line Speaker: 40 mm Input power: lithium electric drive Charging time: 2 hours or more The outer rechargeable lithium ion battery 1500 mah 18650 + two dry cell The input power supply: dc DC5V1000MHA Output power: 6 w Horn specifications: 4 Ω 3 w Φ 40 * 1 Frequency response range: 100 hz - 20 KHZ Sensitivity: 80 db + 2 db Signal to noise ratio: 80 db or higher
