Check the listing for details. Firefly 300MCD21K 10 Code 300MHz Key Chain Gate Garage Remote Multi-Code Comp. Condition: New. Listed at 15.30 USD. Transmitter Solutions Firefly 300MCD21K3 Remote Replaces the 300MCD21K And Is A One Button Key Chain Style 10 on/off Code Switch Type Remote Compatible With The Multi-Code 3060 and 3070 Or Other Brands Of Multi-Code Compatible 10 on/off Code Switch Type Garage Door Or Gate Opener Remote Controls. NOTE: Multi-Code is a brand name and is not a universal type device. Product Description: The Transmitter Solutions model 300MCD21K3 replaces the older 300MCD21K and is directly compatible with the Multi-Code 3060 and 3070 and other Multi-Code brand compatible remote controls that have 10 on/off code switches operating on the 300MHz frequency. This item is new in plastic bag and includes the quick release key chain, battery and programming instructions. The Transmitter Solutions 300MCD21K3 remote is directly compatible with the following models on 300MHz: Challenger: MC1010, MC1020, MC4210, MC4220. Carper: CX-300 Digi Code: 5010, 5060, 5030, 5040, 5070. Heddolf: M219, M220. Multi-Code: 1083, 3060, 3070, 3083, 3089, 4120, 4140. Multi Elmac: 3089. Chamberlain: 300MC. Product Features: Activates one Multi-Code or compatible device on the 300MHz frequency Test/operate LED Quick release key chain One-Year manufactures warranty Product Specifications: Power: 12V A23 battery (included) Frequency: 300MHz Codes: 1,024 (set by 10 dip code switches) Dimensions: 2.125 x 1.5 x 0.5 inches If you are not positive that this is the correct item for you, please email us. We are more that happy to assist you in determining the correct item for your application. If you need to contact us for assistance please include the Make and Model number of the garage door opener, radio receiver or transmitter. The more information you include for us, the easier it is for us to assist you in determining the correct item. We would rather have you contact us than end up with the wrong item and have to return it. Shipping: Most orders are shipped within 1 business day upon receipt of cleared payment. In the rare event that an item is temporarily out of stock and will take more than 2 business days to be available, we will notify you via email. Note: Once your order has been shipped, we have no control over the time it takes the shipping carrier to deliver your order. Should you experience any problems in receiving your order, please contact us. International Buyers – Please Note: Import duties, taxes and collection charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up – do not confuse them for additional shipping charges. We do not mark merchandise values below value or mark items as ‘gifts’ - US and International government regulations prohibit such behavior.