This is a perfect replacement power adapter for intercom. Built-in safe chips, fully protect your intercom from overcharging, over current, short circuit, and so on. Made of sturdy and fireproof material, you can use it easily and freely for charging.Features:Specified power adapter for intercom, compatible with most models, such as for EP450/ GP3188/ GP3688/ CP040, etc.High efficiency: Safe and fast for charging, adjust to deliver the correct current for charging.Built-in stable performance chips, protect your tablet from overcharging, over current, short circuit, etc.Made of environmental-friendly material, safe and anti-interference, sturdy to use.Specification:Color: BlackOutput: DC 12V 1ACompatibility: For DP1400/ DEP450/ EP450/ GP3188/ GP368/ GP3688/ CP040/ CP140/ CP160/ CP180/ CP150/ CP200/ PR400/ CP200/ CP040/ CP140/ CP180Compatible Battery Model: NNTN4851A/ NNTN4970/ NNTN4497/ NNTN4496Charging Dock Size: Approx. 11.5 x 11.5 x 4.5cm / 4.5 x 4.5 x 1.8inPackage Weight: 218gPackage list:1 * Power Adapter for Intercom (Sticker Random).