Toch Remote Wireless Key Finder Locator, 1 RF Transmitter and 5 Receivers.

Specifications:
Frequency:433.92 MHz
Sound Volume of Receiver:85dB
Operating Distance:20m indoor, 20~30m in open space

Transmitter:
Weight:1.5oz/43g
Battery:27A alkaline 12V(included)

Receiver:
Size: 5.2X3.2X1.3cm/2.05*1.26*0.43 inch
Weight:0.4oz/12g(with battery)
Battery£ºCR2032(included)
Color: orange, black, red, pink, blue

Package Includes:
1X Transmitter
5X Receiver (Orange, Black, Red, Pink, Blue)
1X Plastic Bracket
1X English Manual