10Pcs remote control key fobs, button slide cover, compact key chain size, designed for use with compatible fixed frequency remote controls. - Button slide cover helps protect buttons and prevents accidental operation. - Compact key chain size easily attaches to your car keys without added bulk. - Compatible with remote control IC models: 2262, 2260, 1527, 2240, PT2262, PT2240, PT2264, PT2260, PT2242, AX5326-4, AX5326-3, SC2262, SC2260, HS2262, LX2262, EV1527, P527, and others. - Designed for copying fixed code remotes operating at 433MHz (433.92MHz). - Works with remotes using 433MHz frequency; not compatible with HCS chip or rolling code remotes. - Material: Plastic - Color: Black & Silver - Operating Frequency: 433 (433.92) MHz - Rated Voltage: 12V - Battery: 10 x CR2016 (included) - Package Weight: 255g / 8.99 ounces - Package Size: 150 x 50 x 50mm / 5.91 x 1.97 x 1.97 inches How to Program: Reset: Hold buttons A and B simultaneously until the LED flashes continuously, then release to complete reset. If your remote does not have buttons A or B, press the top two buttons. Copy: Press and hold a 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 fob’s LED flashes. Tips: To recover a previously copied code after reset, press buttons C and D (or the bottom two buttons) until the LED flashes. Notice: If programmed correctly, the fob should work immediately. If some buttons do not function, clean the contacts and repeat programming, observing LED behavior. If issues persist after multiple attempts, verify the original remote’s chip type and frequency compatibility. Packing List: 10 x Remote Control Key Fobs