Software

The Burst II Pro is fully compatible with Swarm II, which is Turtle Beach's latest peripheral software. While it otherwise works well enough, Swarm II in conjunction with the Burst II Pro has an irritating habit in wireless operation, as every single settings change takes multiple seconds to apply, which slows working with Swarm II to a tedious level. Another annoyance is that after finishing installation, the installer will forcibly restart the system without any warning.

All settings are distributed across a single page. Button remapping is possible to mouse, media, or macro functions, and EasyShift allows one to designate a shift button that can be pressed to access a second set of bindings. CPI can be adjusted for up to five color-coded steps at a range of 50 to 30,000 CPI, and any non-native values are truncated to native ones. Polling rate may be set to 1000, 2000, 4000, or 8000 Hz. Further, debounce time may be specified, though this will only affect button-up (release), not button-down (press). Further settings include angle snapping (on/off), lift-off distance (0.7/1/2 mm), and MotionSync (on/off), the latter of which synchronizes SPI reads with USB polls at the cost of up to an entire interval of additional motion delay. "Angle Tune" allows adjusting the sensor angle from -30° to 30° in increments of 1. "Standby mode" defines the idle time required to pass until the mouse enters sleep mode. Profile management is available as well.

All setting changes are applied immediately and saved to the on-board memory, so the software does not need to be running (or be installed) all the time. On my system, the software had a RAM footprint of 100 MB on average when running in the foreground, and 89 MB when minimized to the system tray. Upon exiting the application, all processes are terminated, as they should be.

Battery Life

Turtle Beach cites up to 150 hours of battery life at 1000 Hz and up to 40 hours at 8000 Hz. The software includes a percentage-based battery level indicator with single-digit precision, which is reasonably accurate and reliable. For every hour of continuous use at 8000 Hz, the indicator went down by 3%. Hence, assuming linear consumption, around 33 hours of battery life can be expected at 8000 Hz.

Sleep mode is entered after two minutes of inactivity by default, but can be adjusted within the software.

Using the included USB Type-A to Type-C charging cable, I measured the charging speed during the constant current stage, which sits at 0.317 A when lifted and 0.306 A when not lifted. The battery has a capacity of 800 mAh (3.7 V) and utilizes a 3-pin JST connector.