1. Low battery reminder function: built-in rechargeable battery, when the built-in battery voltage is low, the fourth status indicator on the panel will keep flashing 2. Battery: Lithium polymer battery 3. Current consumption: 8mA 4. Detection laser wavelength: 920nm 5. Receiving frequency range: 1MHz-6500MHz 6. Material: ABS 7. Size: 46x15x92mm
