DescriptionSpecifications: Operating frequency: 433 (433.92) MHzRated voltage: DC 12VBattery: 12V 27A (included)Size: 54 x 29 x 14 mmWeight: 28 gWorking current: 10mARadiated power: 10mWTransmission distance: 50-100m (open space)Package includes: 4 x remote control key fobs, 1 x manualNote: This device operates only at 433MHz. Transmission range is 50-100 meters in open space. Provides convenient remote control functionality for daily use.1. Compatible with garage door openers, car central locking systems, car sunroofs, gates, heating systems, and home automation devices.2. Features a compact design with four buttons (A, B, C, D) capable of learning and storing signals from four different remote types, allowing one remote to control multiple devices.3. Durable construction with fade-resistant finish and water plating for enhanced durability. High copying accuracy and reliable performance. Ideal for duplicating existing remotes as a backup.4. Offers high precision in data code replication and stable signal copying with strong privacy protection. Note: Cannot copy rolling code remotes.