"Output power: 2 * 3 w
Outside magnetic trumpet models: 4 Ω 3 w, 40 mm
Frequency response: 100 hz - 18 KHZ
Signal to noise ratio: 80 db or higher
The bluetooth standard: 2.1 + EDR
Bluetooth solutions: JERRY
Working distance: 10 meters or more
The input voltage: DC5V (800 mah), or less built-in 18650 battery (800 mah capacity)
Function characteristics: bluetooth play, TF card playing, USB, hands-free calls, FM radio, audio, AUX input"