What's in the box:

Three Mode 2.4G+BT3.0+5.0 Wireless Optical Pen Mouse 800/1200/1600DPI Rechargeable Pocket Pen Mouse for PC Laptop Computer Grey (Grey)

Features:
Precise Optical Mouse
Promi optical computer pen mouse moves easily for precise optical tracking with or without a mouse pad, which can works perfectly on the bed.
Easy Switch
A triple mode BT mouse with 3 way connections(USB+dual BT). You can connect either by USB or BT.
Rechargeable Mouse
Built-in 450mAh lithium battery, long battery life, no need to change new batteries.
Three Backlights
The mouse comes with 3 kinds of always-on lights, which are more brilliant to use. The internal structure of the mouse can be clearly seen through the lights.
Small and Compact
Ultra small and compact design, you can easily fit it in your pocket or backpack, take it from home to office or go for a travel.

Specification:
Product name: Pen mouse
Color: Red, Yellow, Grey, Blue, Purple, Green(Optional)
DPI: 800/1200/1600
Wireless transmission frequency: 2.4GHz
BT version: V3.0/V5.0
Support system: Windows ALL Mac OS Android Linux
Operating distance: 10m
Number of keys: 4keys
Connection to computer: wireless
Working mode: Optoelectronics
Interface: Type-C
Battery: 450mAh
Item size:14*2.3*1.4cm / 5.51*0.91*0.55in(L * W * H)
Item weight: Approx.25.2g /0.89oz
Package size:16.6*9.2*3.4cm / 6.54*3.62*1.34in(L * W * H)
Package weight:93g /3.28oz

Packing list:
1 * Pen Mouse
1 * USB to Type-C Adapter
1 * USB to Micro-USB Adapter
1 * USB Receiver
1 * Charging Cable
1 * Carry Bag
1 * User Manual