Power Source
The operational requirement of the flash includes four AA batteries. These supply around 330 full-power flashes, with a recharge cycle of 0.1-2.6 seconds. The flash also includes an external power port for connecting power packs such as the PB960, enhancing the flash's output. It's well-suited for various shooting needs such as weddings, fashion, and reporting. A USB Type-C connector is included for future software upgrades.

X Wireless System Details
The TT685 flash comes with a built-in 2.4GHz X radio system, making it operable as a transmitter or receiver. This feature helps set up a flexible lighting environment with a range of 100m, supporting 32 channels and up to five groups. Its compatibility extends with devices like V1, AD200Pro, AD300Pro flash systems, etc., and it can also be controlled using X1, X2, XPro, and V1.

User-friendly Features
The TT685 II comes with a unique TCM (TTL Converted to Manual) feature that smoothly allows conversion from TTL mode to manual mode, helping to secure the correct exposure value. This is a great aid in determining an initial point for setting up external flashes in manual mode. It includes an easily readable rear LCD panel that displays flash settings and features a 2.5mm sync port for basic wired connectivity.

Zoom Capacity
The zoom head of the TT685 II is flexible, ranging from 20mm to 200mm, and can be adjusted both automatically and manually. This ability to customize the light beam makes it a perfect fit for either wide or compact shooting areas.