What's in the box:

Wireless Trigger System with Transmitter Receiver 4 Channels with 3.5mm to 6.35mm Adapter for Photography Studio Flash Light (Standard)

Features:
Wireless flash trigger system, includes 1 transmitter and 1 receiver unit.
4 channels for studio flash light multiple channels working.
With cold shoe design, the transmitter can be easily mounted on camera, convenient to use.
Comes with 3.5mm to 6.35mm adapter for wider compatibility with photography equipment.
Provide more accessible studio work, higher work efficiency with the trigger system.

Specifications:
Color: Black
Main Material: Plastic
Channel: 4
Package Size: 16 * 11 * 4.5cm / 6.30 * 4.33 * 1.78in
Package Weight: 200g / 7.05oz

Packing List:
1 * Transmitter
1 * Receiver
1 * 3.5mm to 6.35mm Adapter