1.BATTERY: 2X9V                                                       

Type: 6F22

S006P OR EQUIVALENT

2.OPERATING CURRENT: STANDBY-30Ma          

MAX-60mA

3.OPERATING VOLTAGE RANGE: 7.1-9.6V           

4.OPERATING FREQUENCY: 7.5KHZ+/1KHZ           

5.SENSITIVITY: Min.13cm (Test coin C25)            

6.AUDIO FREQUENCY:                           

262Hz(do)                                                       262Hz(do)

294Hz(re)                                                        294Hz(re)

330Hz(me)                                                      330Hz(me)

              349Hz(fa)                                                        349Hz(fa)

              392Hz(so)                                                       392Hz(so)

              440Hz(la)                                                        440Hz(la)

              494Hz(ti)                                                         494Hz(ti)

              523Hz(do)                                                       523Hz(do)

7.TEMPERTURE RANGE  -20^。C-60^。C                        

8.SIZE: 550mm(L)*355mm(w)*153mm(H)                     

9.GROSS WEIGHT: 3Kg                                               

10. NET WEIGHT: 1.37Kg