Description: Hobby RC Receivers & s: 2.4G 7CH remote controller with receiver specially for RC cars and boats. 2.4G RC Controller : Super active and passive i jamming capabilities, very low power consumption and high receiving sensitivity. RC Model Vehicle Electronics Parts: Steering/throttle trim adjustment, steering/throttle servo reversing, steering/throttle dual rate adjustment. Comfortable Grip: Ergonomic grip and steering wheel,let the beginners can control the car or boat within speed rang. Waterproof: Good sealing peormance can effectively block external water droplets, water sources, and water , and the high waterproof level allows you to use it with confidence. Specification: Material: Plastic s Channels: 7 Fit Model: car, boat, Wireless frequency: 2.4G Transmission power:<20 dBm Wireless protocol: Range: > (ground) Channel resolution: 4096 Battery: 1.5AA * 4 or 2S(not include) Charging port: None enna type: built in single enna Data port: Temperature range: -10~60 C Humidity range: 20-95% Receivers PWM Channels: 7 : 2.4G Protocol: Range: >(Ground) enna: Single enna Input Power: 3.5-8.4V RSSI: Support Data Output: PWM Temperature Range: -10~C Humidity Limit: 20-95% Waterproof:PPX4 Size Chart: 136.4x111.8x197.5mm/5.37x4.40x7.78inch Package Includes: 1x RC 1x RC Receiver Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wondeul online shopping!