Specifications: Model number: CH-M17 Color options: Black,Red,Army Dimensions: 36*15*15.8CM Packing: 20PCS/CTN,29.3KGS,83.5*39*4*67CM Size of speaker: 5 inch×1+52MM*2 Output: 20W Transmit range:≤10M. Sensitivity: 400mv. Charging time:<3 Hours. Operate time:20 Hours. Noise-signal ratio: ≥80db. Working voltage: DC5V Battery: 2000MA Functions: Blue-tooth connection,call, Support USB flash disk,TF storage card,AUX. MIC slot FM broadcast. Short charging time,long operate time. Clear noise speaker. With handle