1. Product chip: RC118 and 1527, 2240 2. Product size: 71x33x12mm 3. Product weight: 20.6g 4. Rated voltage: 3V 5. Rated current: less than 12mA 6. Wireless transmission distance: within 100m 7. Transmission power: greater than 10mW 8. Working frequency: 315MHz / 433MHz 9. Installation method: handheld 10. Scope of application: Anti-theft devices for motorcycles, electric vehicles, MP3 players, lighting, garage doors, gates, rolling gates, street lamps, water pumps, wireless remote control toys and other industrial supplies, etc. 11. Small size, easy to carry. 12. Using high-quality chips, the receiving and transmitting signals are stable and responsive. 13. Can be hung on the keychain, put in the pocket or purse, easy to use. 14. With 2032 button battery