Usage Tips:[Comprehensive Frequency Detection] - Capable of detecting frequencies across multiple bands, including 315MHz, 433MHz, 868MHz, 902MHz, etc. [Versatile Signal Detection] - Identify and test IMMO signals, door handle signals and Infrared signals, providing a complete testing solution. [Increased Battery Life] - Intelligently designed power saving features allow for longer battery life, reducing the need for constant recharging. [Convenient Portability] - The compact and exquisite design makes it easy to carry and transport, facilitating testing on-the-go. 1.Flexible and easy to use.Perfect match with the Car 2.and nice qulity, durable to use,Made of material, 3.Built to strict quality control standards.Not easy to damage, long service life 4.Stable performance, high reliability.a perfect replacement for your old ones 5.Correct Connector No cutting or splicing. Item Type:Car Remote Key Frequency Tester(Need to bring your own 2*AAA battery) Condition: Fitment:Direct Replacement Fitment: For Car Remote Key Colour:As Shown Material:ABS Package Contents: 1 * XDRT20 V2 Car Remote Tester 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.