Specifications Hign-concerned Chemical:None Model Number:SMG-2055 Origin:Mainland China Certification:CE,RoHS Frequency:433MHz 868MHz 287-868MHz Material:Metal and PVC Battery:CR2032x1 Usage:Clone Features:Waterproof, Slipcover Characteristic1:Multi-frequency 280-868mhz Characteristic2:One instead of four Characteristic3:For fixed code learning code rolling code Size:102*36*13mm Specifications: Product material: ABS Product size: 102*36*12mm Product weight: 35 g Product color: Black Rated voltage: 3V(CR2032) Installation: wireless Learning frequency range: 287MHz,300MHz ,306MHz ,310MHz ,315MHz, 315.5MHz ,330MHz, 360MHz ,390MHz, 410MHz, 430.5MHz, 433.42MHz, 433.92MHz, 868.35MHz, 286-361MHz, 384-400MHz. Scope of application: garage door, alarm, automatic door, rolling door, etc. For Multi-brand remote controls. 1 remote control can control up to 4 different brands of remote controls. Clone 4 identical frequencies at the same time. Clone 4 different frequencies at the same time. Clone 4 different brands at the same time. Clone 4 identical brands at the same time. Include 1 x Remote Control 1 x Battery 1 x Keychain 1 x English Manual