AC110V 2 Transmitters 10 Channels Hoist Crane Radio Remote Control System Product name: 10 Channels Hoist Crane Radio Remote Control System; model: HS-10; Power Source of Receiver: AC110V; Power Source of Controller: 2 x AA batteries;Working distance: up to 100m; Response Time: 0.0001s; Protection Grade:IP65; Working Temperature:-30C~+80C; Package content: 1 x Hoist Crane Radio Remote Control System + 2 x Transmitters