Spec:
Item Type: Pen-type mouse
Model: PR-03
2.4G Mouse Distance: 10 meters
3-Step DPI Adjustment: 800/1200/1600
Mini Receiver
Supported Systems: For 7/8 / Vista/ XP/ 2000 / FOR Android / FOR Linux / OS X.
Battery: Use 1 AAA battery (not included)
Product Color: Red / Blue / Gray (Optional)
Number of Keys: 4
Carrier Frequency: 2402 MHz-2480 MHz
Working Channels: 16, automatic frequency hopping
Rated Working Voltage: 1.5V
Rated Working Current: 6 mA
Tracking System: Optical
Maximum Acceleration: 14 inch/second
Material: ABS plastic

packing list:
1 x Mouse Capacitive Pen
1 x Mouse Base
1 x USB Receiver
1 x User Manual
1 x USB to Type-C Adapter
1 x USB to Micro Adapter

Notice:
Low Voltage Alarm Function:
When all batteries are low, the low‑voltage alarm light of the pen and mouse will light up to remind you to replace the battery as soon as possible. When replacing the battery, you must use AAA batteries.