USB SD & Recording Mini waistband portable amp

This product is digital portable amplifier with USB port and SD card reader,use Lithium-electricity rechargeable battery.can wear it,belt it&waistband,easy to carry, Small in size, show a clear voice, strong volume, the use of simple and low cost, schools, outdoor lectures, dance,tour guides,Conferencing,Picnics,Trad show promotions,Coaching, gymnastics demonstrations, outdoor activities, hiking guide, street selling, the square provisional assembly, speech activities, the exhibition guide, such as shopping malls to promote the supermarket is the best public address equipment users. NI-MH Batteries can be recycled more than 500 charges. Specifications: Frequency Response:100HZ 15KHZOutput Power: 15WSpeaker Impedance:4ΩPower Supply:7.2 9VBuilt-in with Two 3.7V/1600MA Lithium-electricity rechageable batteriesCharging time:6 8 hoursOperetion time:12 14 hoursDimentions(WxDxH):100x40x80mmMain machine weight:0.25KgsStandard Configuration: 1 pc main machine(Amplifier)1 pc Headset Microphone(5 different style for choose)1 pc 9V/1A charger1 pc waist belt & 1 pc shoulder belt1 pc use manual1 pc colour boxPacking:28 pcs/ctn Ctn size:51.7x37.7x47.5cm Gross weight:22Kgs 1X20' container can load 8470pcs 1X40' container can load 17540pcs 1X40'HQ container can load 20560pcs