Features:                              
*Patent product, Mini streamline appearance, ergonomic body design  
*Nd-Fe-B magnet speaker,high sensitivity and instant response.  
*Multifunctions: Set microphone, speaker, voice amplifier, karaoke.     
*Rechargeable lithium battery, large capacity, charging recycle can reach 500 times more                           
Applications:  Teaching, speech, guide, exercise coach, promotion, music or personal use.
Specifications:
*Output Power: 10W                     
*Frequency Response: 80Hz~12KHz *Speaker Impedance: 6Ω            
*Working Voltage: 7.2~9V           
*Battery:7.4V/1000mAh rechargeable lithium battery                       
*Charging time: 3~4 Hours            
*Battery working time: 6~12 Hours    
*Charging adaptor: DC10.6V/350mA    
*Material: ABS + Nylon waistband    
*Net Weight: 250g (with battery)   
*Size: 170 x 98 x 60mm
*Color: Gray, Black, White, Pink etc optional