Specifications: 1) Power: 9V Standard or Rechargeable Battery(270mW) 2) Operating Frequency: 22KHz 3) Working current: <50mA 4) Operating Voltage: 7-9V 4) Working voltage: 12V DC or 9V AC 5) Temperature: -5-55ˇăC 6) Weight: 411g 7) Dimensions (L x W x H): 410mmx85mmx45mm 8) Designed according to the body somatology theory 9) High-sensitivity, high stability 10) Sound / light alarm / vibration, optional earphone 11) Low power design
