Feature:1. Simpler in Control: There are 8 buttons on the crane controller, and every button is clearly marked with its function, also has LED indicator.2. Wide Working Range: Designed to have a wide working frequency of 310331MHz VHF and 425446MHz UHF, the crane button switch is very reliable.3. Has Good Stability: The remote control range can get up to 300m, while the 0.01s quick response ensures high accuracy and high working safety.4. Wide Compatibility: Highly compatible with cranes, conveyors, CNC, coal mining machinery, generator startup, concrete pumps, grab buckets, etc.5. Better IP67 Design: With IP67 protection level, the hoist controller is anti metal dust, anti oil stain, anti drop, waterproof, and anti acid.Specification:Item Type: Crane Remote ControlMaterial: NylonRemote Control Battery: 2 x AA battery, shipped without battery. Protection Level: IP67Remote Control Frequency Range: VHF: 310-331MHz. UHF: 425-446MHZRemote Control Transmission Power: 10DBMRemote Control Security Code: 32 bit, 4.3 billion sets. Control Distance: Within 300 meters of remote control in an open environment. Receiver Sensitivity: 110DBMReceiver Frequency Range: VHF: 310-331MHz. UHF: 425-446MHZApplication: For cranes, conveyors, CNC, coal mining machinery, generator startup, concrete pumps, grab buckets and other machinery. .Package List:1 x Crane Remote Control1 x Receiver1 x Crane Remote Control Protective Cover2 x Fuse1 x User Manual