10Pcs remote control key fobs with button slide cover and key chain size. Designed for use with fixed frequency remote controls that operate at 433.92MHz. Features: Button slide cover helps protect buttons and prevents accidental operation. Compact key chain size easily attaches to car keys without adding bulk. Compatible with remote controls using IC models: 2262, 2260, 1527, 2240, PT2262, PT2240, PT2264, PT2260, PT2242, AX5326-4, AX5326-3, SC2262, SC2260, HS2262, 2260, LX2262, 2260, EV1527, P527, and similar fixed code chips. Intended for copying fixed code and learning code remotes operating at 433.92MHz. Not compatible with HCS chip or rolling code remote controls. Specifications: Material: Plastic Color: Black & Silver Operating Frequency: 433.92MHz Rated Voltage: 12V Battery: 10 x CR2016 (included) Package Weight: 255g Package Size: 150 x 50 x 50mm How to Program: Reset the key fob before use. Press and hold buttons A and B simultaneously until the LED flashes continuously, then release. If the remote does not have buttons A and B, press the top two buttons. To copy a remote: Press and hold the button on the original remote while simultaneously pressing and holding the desired button (A, B, C, D, etc.) on the new fob. Keep both remotes close together during the process. Programming is complete when the LED flashes. To restore a previously copied code: Press buttons C and D (or the bottom two buttons) until the LED flashes. Note: If the programming is not successful, clean the battery contacts and repeat the process. Observe the LED behavior during operation. If issues persist, verify the chip type and frequency of the original remote and ensure compatibility. Packing List: 10 x Remote Control Key Fobs