TDXOne TD-Q3

A step in the right direction in my quest for a tiny 2M radio - except it is UHF - the TDXOne TD-Q3 (409Shop - $28.50 or Amazon - $38). Dimensions are 82 x 47 x 24 mm. The 409Shop says it can be expanded to 99 channels, but everything else says 16.

409Shop:

Model:	TD-Q3
Frequency Range:	UHF 440-480MHz
Channel capacity:	16(can be extened to 99)
Output power:	<=3W
Operating Voltage:	3.7V
Antenna:	Built-in aerial
Working Temperature:	-20°C—+50°C
Frequency Spacing:	12.5/25kHz
Battery capacity:	1800mAh
Color:	Blue
Dimension(Exclude antenna) :	82x47x24mm
Weight(Include Battery):	95g
Feature:
FM radio:		Yes
Emergency alarm:		Yes
Flashlight function:		Yes
Scan function:		Yes
Monitor function:		Yes
Key lock function:		Yes
Volume adjustment:		Yes
Low battery indication:		Yes
Voice purification function:		Yes
TOT(timer-out time) :		Yes
CTCSS/DCS:		38CTCSS/83DCS