Package Contents: you will receive 3-pack universal garage door opener remote with , key fob, built-in battery, suitable for most of garage door openers made from 1993 to present; It can be suitable for yellow/purple/red/orange/green 5-color learning buttons Precautions for use: please perform remote programming near the remote control of the garage door; Before starting the remote programming, make sure the garage door opener is completely closed, otherwise programming may fail; Programming may fail and automatically unprogram, for all , please refer to detailed instructions Compatible list: 893max remote control can replace 893LM remote control transmitter; Compatible with for 81LM green learning button (100 million yards, 390MHZ), model: 81LM, 82LM, 83LM, 84LM, red orange learning button (Security+, 390MHZ), model: 91LM, 92LM, 94LM, 96LM, 970LM, 971LM, 972LM, 973LM, 973W, 974LM, purple learning key (safety, 315MHZ), model: 398LM, 378LM, 377LM, 376LM, 374LM, 373LM, 372LM, 371LM, 370LM, 365LM, learning 35 Yellow Button (310, 315 and 390MHZ), Models: 891LM, 893LM Safe and reliable: it can control 3 different garage door openers, door operators and accessories at the same time, Security 2.0 and rolling code technology, the highest level of encryption, keep you from external intrusion, and give you peace of mind; Work stably at a distance Sophisticated design: sliding protection, no damage caused by accidental pressing into pockets or purses, built-in LED glow and low battery light dimming reminder, small, compact and keychain style; easy to carry, the latest radio frequency technology ensures more Good coverage; secure rolling code encryption Please note: There is a slight color difference or discrepancy in kind, please don't mind, thank you! Material: plastic colour: blue Package Contents: 3x garage door opener 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.