With the Profoto Connect Wireless Transmitter for Sony cameras, you have a wireless connection with AirTTL lights that controls flash sync, remote control, Auto TTL, and HSS. The transmitter also controls flash sync and remote control in Air lights. There are three settings on the Connect transmitter itself. Auto being the first, takes all the guess work of setting up your flashes. The manual setting is there if you want to set the flashes yourself and be more creative. The final setting, of course, is to turn it off when the transmitter is not in use.

By downloading the Profoto app and with Bluetooth connection, you can control your lights wirelessly as well and upgrade your firmware later through the app. The Connect works on a frequency of 2.4 GHz and up to eight channels with an operating range of a 1000′ when using it with normal sync flash and remote control, and 330′ with Auto TTL and HSS. The built-in lithium-ion polymer battery has a battery life of 30 hours and is rechargeable via the included USB cable. Additionally, the transmitter powers off after 60 minutes of inactivity.

Available kinds:

• 901310 Profoto Connect - Canon
• 901312 Profoto Connect - Sony
• 901314 Profoto Connect - Nikon
• 901316 Profoto Connect - Fujifilm
• 901318 Profoto Connect - Olympus

$299 at https://www.bhphotovideo.com/c/product/1463132-REG/profoto_901312_connect_wireless_transmitter_for.html