Specifications: * Mounted with a solar battery: Automatically charging from the solar panel to the built-in nickel-cadmium battery. * Windshield & visor mount * Compatible with 4-bands including X, K, New-Kand Ku bands: Not only the X-band, but the model W-8889 is also compatible with the K-band, new K band and Ku bands so as to be compatible with various radar speed traps. * Provision with the Auto Alarm Cut (AAC) system: The built-in oscillation sensor shuts off unwanted alarming sound generated while halting the vehicle or driving it at a low speed. * Auto Power Off function: When non-oscillation condition lasts for about 3 minutes, the power supply source is automatically shut off until the sensor detects a next oscillation, thus saving unwanted consumption of the battery voltage.