Wireless Queue Calling System ,Red Detail The distance of the signal connection is not more than 500 meters. 3 notification modes: light vibrate, light sound, light vibrate sound Working voltage: DC3.7V Operating frequency: 315 MHz / 433.92 MHz Standby current: <12mA? 3mA Battery capacity: 360mAh Wireless Cue Pager size: 9 x 9 x 2 cm. Wireless Queue System Weight: 340 g 6 months warranty
