Feature: 1. Electronic Components: Formed by electronic component parts for stable and quick respond performance, providing a satisfying using experience. 2. Perfect Fitness: Conforms to the specifications of your original equipment, able to achieve close fitting of both size and circuit, the functions can be normally used even has better performance. 3. Easy to Use: Manufactured with shape and small size, has a perfect match, simple for installation and replacement, does not take much effort or time. 4. Suitable Model: Ideal replacement for the original old or damaged part, suitable for WLtoys XK K110, K123, K124, K110S and other remote control helicopters. 5. Package Content: The package contains only a receiver board, other accessories and tools need to be prepared by yourself, please make sure you are clear about this. Specification: Item Type: RC Plane Receiver Board Material: Electronic Components Color: As Picture Shown Application: For WLtoys XK K110, K123, K124, K110S and Other Remote Control Helicopters Product Size: Approx.30x23mm/1.2x0.9in Weight: Approx.6g/0.2oz Operating Voltage: 3-7V. Package List: 1 x Receiver Board1 x Double Sided Foam Tape