1. Receiver/Transmitter Frequency: 2.4GHz; Output Power: 50MW; Voltage: DC 12V; Working Current: 200mA; Video Input/Output: PAL/NTSC Composite Video Signal. Black wire connects to the negative pole, while red wire connects to the positive pole. 2. quality materials: Sturdy and durable, resistant to cracking, made of ecofriendly PVC with a copper core. The cable body is flexible and can bend . The interface is securely connected, preventing accidental disconnection and protecting the device. 3. Signal range: The 2.4G wireless signal receiver and transmitter operate within a range of approximately 100 meters (in open areas without strong signal interference). 4. Safe driving: The 2.4G wireless signal receiver and transmitter eliminate complex wiring, making them compatible with incar monitors and backup systems. This wireless rearview camera kit connects the rearview camera to the front display screen, allowing easy viewing while reversing.