Retekess T111,T112 Single Buzzer,Lanyard Hole Design,3 Pompt Modes,Change Label Paper,Long Range,Rechargeable Pager for Restaurant,Nursery,Hospital,Church,Food Truck auspowers_batchthree Material : Durable ABS +

Material : Durable ABS + Top crystal

4GHz wireless and USB 2

Cord Length: 4ft(48 inch)

Size Defying Sound: Upgraded Stormbox Micro 2 delivers explosive outdoor-audio more than any other speaker in its class

Retekess T111,T112 Single Buzzer,Lanyard Hole Design,3 Pompt Modes,Change Label Paper,Long Range,Rechargeable Pager for Restaurant,Nursery,Hospital,Church,Food Truck auspowers_batchthree Material : Durable ABS +Retekess T111,T112 Single Buzzer,Lanyard Hole Design,3 Pompt Modes,Change Label Paper,Long Range,Rechargeable Pager for Restaurant,Nursery,Hospital,Church,Food Truck Read more Wireless transmission Wireless technology, no need to use WiFiThe signal range can reach 1640ft at open area Signal indicator Blue light flashes when charging, blue light is always on when charge finish. Red flash slowly in standby state, red light flashes quickly when the