1. Supports infrared or radio frequency () detection, compatible with remote control types. 2. Type-C interface power supply, compatible with mobile phone power , convenient to use. 3. Synchronized audio and visual prompts, providing intuitive feedback on remote control functionality. 4. Compact and , easy to carry, suitable for on-site testing. 5. Widely applicable to common remote controls for home appliances, electric vehicles, roller shutters, etc. Interface: Type-C Power Supply Voltage: DC 5V, can be directly powered by a mobile phone power bank Dimensions: 9cm x 5cm Display: Audio and light display Product Introduction: Select infrared or remote control testing via the switch; When testing an infrared remote control, switch to "Infrared". Point the remote control's infrared transmitter at the tester's infrared receiver and any button on the remote control. The tester emit an audio sound and flash a red light. Infrared remote controls include: air conditioner remotes, TV remotes, set-top box remotes, fan remotes, light remotes, and other remote controls with infrared transmitters. When testing a wireless remote control, switch to "". Place the remote control on the radio frequency remote control sensing area of the detector and any button on the remote control. The detector emit an sound and flash a red light. X-ray remote controls include: electric vehicle remote controls, warehouse roller shutter door remote controls, factory gate remote controls, switch remote controls, and other wireless radio frequency remote controls. Note: This remote control detector does not support most car remote controls; it only supports a small number of car remote controls. Color: As Shown Material: PCB Package Contents: 1 * Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.