Model: PV3IN1 Model Number:5.8G For Vehicle Type:Helicopters Drive Attributes:Video Switcher Use:Vehicles & Remote Control Toys Input voltage: 4.8-6V Input channels: 3 Output channel: 1 Video signal impedance: 75Ω Port 'in' is video signal input, IN1,IN2,IN3; OUT is video output '-' is negative pole, '+' suspend, 'S' is receiving video signal Material:Composite Material Size: 4cm x 1.8cm x 0.5cm/1.56'' x 1.7'' x 0.2''(approx) Color:Red+Black Quantity: 1 pc