详细参数：
  注明：PT-04与PT-16,参数基本一致，只有通道多少区别，其他地方一致。在此统一说明参数。
一个发射器配一根2.5mmPC线，自带12V23A电池，接收器不配连接线不配电池。报价不包括包装，

PT系列机顶闪光灯遥控触发器,以其稳定的性能,合理的价格,得到了用户的广泛好评,利用433M无线调频遥控工作,超长待机功能,宽幅(5V-12V)低电压触发,反应灵触、无频闪、漏闪等不良现象; 16通道设计,30米远距离触发,同步速度达1/250.
五大优点：
1、整体高矮设计适中,摄影师在使用时,不会因触发器大高而影响拍摄效果。
2、连接三角架为1/4〞罗母固定,闪光灯不会因松动而倒下的现象；
3、调频开关在外面,随时可调,方便摄影师快速调频,不错过精彩的拍摄；
4、接收器电源为2节AAA电池,摄影师随时随地都可更换电池,不会出现因找电池的烦恼！
5、热靴座采用攻牙式结构,不会出现松脱现象！
（市面上的热靴座多采用自攻罗丝拧紧塑料件，容易松脱）
品名：遥控触发器PT系列
适用对象与作用：适用于专业摄影发烧友、经常使用顶载闪光灯的摄影师； 主要作用于不同品牌机载闪光灯实现离机闪光，方便摄影师补光；
产品特点：三大主流品牌(Canon、NILON、SONY)触点匹配(索尼新款需增加转换接口)占国内90%以上用户使用；
功能特点：无线遥控离机引闪机载闪光灯，只需数码相机有热靴座，即可离机引闪三大主流品牌机载闪光灯；独具一色的设计，具有全国首款十六通道调频，30米远距离触发，抗干扰能力强；低压（5V-12V）触发、反应灵敏、无频闪、漏闪等不良现象；
材质：原生塑料压模成形，金属材质热靴座、金属插伞座。
其它：发射头自带23A-12V电池，可使用次数达10000次；接收器电池：2*1.5V-AAA(标准七号电池)；


PT-04GY 4 Channels Wireless Remote Speedlite Flash Trigger Universal for Canon Nikon Pentax Olympus

Features:
Universal hot shoe interface, compatible with Canon, Nikon, Sigma, Olympus, Pentax, etc.
Globally univeral 433Mhz frequency, 4 channels.
With studio flash interface, can trigger several kinds of studio flashes.
Transmitting distance up to 30M, no limits with directions or angles.
1/4" nut can be connected with tripod or light holder to make flashlight safe and stable.
Speedy frequency regulation, convinient for photographers to shoot.
Energy-saving design with 12V 23A battery of transmitter and 2 AAA batteries(not included) of receiver.
Comes with a PC sync cord for cameras without hot shoe socket.

How to use:
1. Insert the transmitter\'s hot shoe socket into your camera\'s hot shoe jack, plug the flash onto the receiver, switch ON the receiver. Make sure the channel selector of both transmitter and receiver at same channel. Press the Test button on the transmitter to test before shooting.
2. If your camera has not hot shoe socket for connecting the transmitter you can connect the transmitter to the camera by the PC Sync Cord provided. (only the old camera needed).
3. You can trigger both the flashgun and studio lights with this flash trigger. If you use the receiver on big studio strobe flashlight or AC slave flash, you can just connect the receiver to the studio strobe flashlight with 3.5mm or 6.35mm jack plug PC Sync cord(not included).

Compatible with:
* Canon SpeedLite 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX/EXII, 430EZ, 420EX, 420EZ, 380EX;
* Nikon SpeedLight SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24;
* Olympus FL-50, FL36;
* Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT;
* Sunpak Auto 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D;
* Vivitar 285HV (Older Vivitar 285/283 works only with PC sync cord);
* Other flash models with a trigger voltage of 12V or lower.
* Work with flash units using universal hot shoe like Nikon, Sigma, Olympus, Pentax (except Minolta SONY, for they use a special hot shoe).

Specifications:
Power of transmitter: 23A 12V mini battery(included, about one year lifetime)
Power of the receiver(AC): 2 * 1.5V AAA Alkaline Battery(not included)
Outdoor working distance: max. 30m / 90feet (open area, no fraise)
Indoor operating distance: max. 25m / 75feet
Channel: 4 channels
Frequency: 433Mhz
Synchronous speed: Max. 1/250sec
Umbrella socket: approx. 0.8cm / 0.24in
Color: black
Material: metal + plastic
Package size: approx. 7.5 * 6.5 * 4.6cm / 2.25 * 1.95 * 1.38in
Package weight: 86g / 2.99oz

Package includes:
1 * 4-channel Transmitter(23A 12V battery included)
1 * 4-channel Receiver(AAA batteries NOT included)
1 * PC Sync Cord(2.5mm to PC)
1 * User Manual

This wireless flash trigger is made up of two parts: Signal Transmitter and Receiver. The signal transmitter adopts the advanced circuit and components. It can transmit wireless signal that is being encoded with low power consumption. The receiver works with two AAA-type batteries and decodes with microprocessor, it can trigger up to two flash units simultaneously, so you can increase the flash power with an extra flash unit.