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