Adjustable DPI 2.4G Wireless Optical Presenter Pen-Blue

I am an Chinese seller,providing customers with high-quality and low-cost products.
The types of products we sell include Home & Kitchen,Health & Beauty,Fashion Clothing,Electronics,Watches & Jewelry,and so on.
We keep up with the most popular fashion trends. If you like our products, please follow us and become our followers and fans.
Sincerely at your service .Thank you for your shopping and have a nice day.Specifications:
2.4GHz wireless connection, up to 10m operation distance (depend on environment).
If there is no 2.4GHz signal, it will automatically power off to save power.
Ergonomic pen shape design, fits comfortably on your hand.
With low voltage alarm function, reminds you to replace battery in time.
Real plug and play, no extra driver needed.

Item Name: Pen Mouse
Material: ABS
Operating Frequency: 2402MHz - 2480MHz
Transmission Distance: >10M, 360 Degrees
Resolutions Adjustable: 500/1000cpi
Tracing System: Optical
Operating Current: 15mA
Button Numbers: 4 Buttons
Rated Work Voltage: 3V
Rated Work Current: 15mA
Channel: 16 with Automatic Frequency Hopping
Power Supply: 1 x 1.5V AAA Battery (Not Included)
System Requirements: for Windows98/XP/Vista/Windows7, for Tablet PC, for Mac OS X, for Linux
Features: Wireless, Ergonomic Design, Pen Shape, Easy to Use
Size: 140mm x 20mm x 15mm/5.51" x 0.79" x 0.59" (Approx.)

Notes:
Due to the light and screen setting difference, the items color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.

Package Includes:
1 x Pen Mouse
1 x 2.4G Receiver