Transmitter Parameter: RF frequency : 433.92MHz Operating voltage : DC12V Product Type: Copying/Duplicating Remote Control Transmitter Key Fob. Match Code Way: Copying while attached to another remote control (One to One Copying). Channel Supported: 4 Channel. Encoding Type: Learning Code (Example: 1527), Fixed Code (Example: 2262). Modulation System: ASK. Operating Current:less than 25mA. Transmission Power: +13dbm. Transmitting range : Open space is more than 50 meters Battery : CR2032 or 27A 12V battery ( include 1 battery) Main Item Size: 5.5 x 2.8 x 1.4cm / 2.16 x 1.1 x 0.55inch Use:Universal Wireless Communication:RF Model Number:Copy Remote Control Duplicator for Garage Door Gate Car Remotes type:Copy Remote Control Support chip encoding 1: 2260, 2262, 1527, PT2264, PT2240, SMC918, AX50SMC926, AX5326-3, AX5326-4 Support chip encoding 2: FP527, HT600, HT680, HT6207, HT6010, HT6012, HT6013, HT6014, HT12D, HT46F49E, PI Application scenario:Family, Farm, Factory, Office, Supermarket Application:Garage, Light, Automated curtains, Fan, Door, Gate, LED, Lamps, Motor color:Black Material:plastic Package Contents: 1 x Garage Door Gate Car Remotes Only the above package content, other products are not included. Note: Light 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.