This is a device designed to accurately measure your vehicle's speed and provides audio alerts, ensuring you avoids costly speeding tickets. This car-mounted Speed Tester offers acuurate speed detect, allowing you to stay within legal limits effortlessly. The built-in sound system instantly notifies you if you exceed the speed limit, helping you maintain a safer and responsible driving experience.

Features:
Built in Chinese, English, and Russian language switching.
Real driving speed measurement, quick measuring speed, and high accuracy.
Sound signal strength level indication, special tone provides signal strength and frequency band recognition.
Multi mode warning selection, urban area, highway, mute, automatic mute mode switching.
Intelligent frequency conversion, strong -interference performances.
Compact in size, it doesn't affect your driving, and it's easy to install.

Specifications:
Main color: black
Material: ABS
Working voltage: 12Volt
Speed measuring :
X-band: 10.525GHz ± 100MHz
K-band: 24.125GHz ± 175MHz
Ka band: 34.700GHz ± 1300MHz, 35.100GHz ± 1300MHz
: 904mn ± 33MHz
Strelka pulse duration: - 30ns
Pulse cycle: - 25us
Item size: 103 * 65 * 28mm / 4.1 * 2.6 *1.1in
Item weight: 77g / 2.7ounce
Package size: 150 * 110 * 45mm / 5.9 * 4.3 * 1.8in
Package weight: 188g / 6.6ounce

Packing List:
1 * Car Driving Speed Tester