Product Name: 4 Buttons Long Distance Wireless Remote Control Duplicator Battery Type: Cr2016 Material: Plastic and metal Together Voltage: 6V Transmission Distance: <50m Universal: Universal Certification: ISO9001, CE Type: Button Signal Transmission: RF Remote Control Application: Automatic Doors Battery: Included Keychain: Included Sample: Available OEM and ODM: Available Price: Negotiable Trademark: Ucontrol Transport Package: Polly Bag / Gift Box and Customized ones Origin: P. R. China HS Code: 85269200 Product Description Features:1.Self learning remote control2.Learining face to face in seconds3.Copies most radio frequency fixed code remote controls4.Many uses including car alarms, home alarms, panic buttons, garage door, rolling curtain, etcSpecifications:BrandUcontrolModelQN-RD082XFrequency315/433Mhz etcWorking distance50-100mWorking voltage12VCoding ModeFixed CodeSize30mm×58.5mm×12mmOthersBattery and keychain includeDetailed picture: