Features:

Low-cost, low energy consumption , two alkaline batteries can be used 4 months , Buyers bring their own battery
Temperature Range:-40C-+80 C
Protection class:: IP65
Material: fiberglass shell structure
Control distance: up to 100 meters
Transmitter Power: DC 3V (2 alkaline AA batteries can be used 4 months)
Receiver Power Supply: AC 380V/220V/110V / or DC 12V/24V/36V/48V
this items without include battery , because airlines and airplane do not allow
Standard configuration:
1 Transmitter 1
2 receivers 1
3 The receiver comes with 1M cable connector
4 Operation and Maintenance Manual