Name:Portable guitar speaker Function: >power RMS 10watt >Inputs 1*Jack >Input,Selector,Gain Low,High control 1 Headphont output 1 Master Volume control Air scatter function. Dimensions(mm): 190*120*230 Output power 10W Input impedance 220kΩ Input sensitivity 78mV(1KHz) SNR 80dB Speaker size 4 inch Material Medium Density Fiber Board G.W(KG: 2.915 Packing Carton Size(m): 0.28*0.175*0.2720" 2116PCS40" 4006PCS40"HQ 5064PCS Other Model Guitar speaker Output power 10W 15W 20W Input impedance 220kΩ Input sensitivity 78mV(1KHz)154mV(3K-4KHz) SNR 80dB 82dB 83dB Speaker size 4 inch 6.5 inch 6.5 inch Materima Medium Density Fiber Board,PVC,PaintingFunction Input,Selector(Clean /distortionr),Gain Low,High 1 Earphone output 1 Master Volume control Size(mm) 190*120*230 300*150*320 280*168*240 guitar speaker