Software

The Aria II Pro comes with its own lightweight software. All options are accessible through three different tabs. The first page allows for button remapping to mouse, keyboard, media, and macro functions, along with the ability to adjust debounce time, which effectively controls click latency, at a range of 0 to 30 ms in increments of 1 ms. Profile management is present as well. The second page houses CPI adjustment settings for up to four color-coded levels, ranging from 50 to 26,000 CPI, in increments of 50 CPI. Values cannot be put in directly, as this function appears to be bugged. Also included are polling rate (125/250/500/1000/2000/4000/8000 Hz), LOD (1/2 mm), and angle snapping (on/off) adjustment options. "Ripple control" is enabled by default, but can be disabled, and applies smoothing, which lessens jitter at higher CPI steps at the cost of increased motion delay. "MotionSync" can be turned on or off, which turning on synchronizes SPI reads with USB polls at the cost of a motion penalty typically roughly equal to half of the set polling interval. Furthermore, a setting that allows modifying the sensor mode is present. If plugged in or using polling rates above 1000 Hz, the sensor mode will default to "corded" with no way of changing it. In wireless mode at polling rates of 1000 Hz or under, one can choose between "LP" (low power) and "HP" (high performance) modes, which determine the sensor run mode and therefore battery life. Lastly, "Peak Performance" defines after how much idle time sleep mode is entered. A macro editor can be found on the third page.

All settings changes are saved to the on-board memory, so the software does not need to be running (or even installed) all the time. On my system, the software had a RAM footprint of roughly 47 MB on average when running in the foreground, which changes depending on which page is open, and which doesn't change when minimized to the system tray. Upon exiting the application, all processes are terminated, as they should be.

Battery Life

Fantech does not provide any battery life numbers. The software features a percentage-based battery life indicator with single-digit accuracy, which isn't particularly accurate or reliable, but good enough to allow gauging expected battery life. Using 2.4 GHz wireless at 8000 Hz, the indicator went down by roughly 15% for every two hours of continuous usage. Accordingly, assuming linear consumption, around 15 hours may be expected, which would translate to around 70–80 hours at 1000 Hz, using the "LP" (low power) sensor run mode.

Sleep mode is entered after one minute of inactivity by default, but this 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 0.299 A when lifted and 0.284 A when not lifted. The battery has a capacity of 300 mAh (3.7 V) and utilizes a 3-pin JST connector.