Features:
1. The mini comes with a small size and can be carried around. It comes with a USB-TYPE-C charging cable that can be used as a hanging rope.
2. [Temperature control chip] Efficient heat dissipation, automatic cooling after long-term use.
3. [Compatible with batteries] One 21700/18650 lithium battery, convenient and fast, can be used with just one battery installed. (Please use a high-quality battery with a voltage of 3.7V and above 2700mAh.)
4. [No welding required] The product does not require welding, secondary processing, correct battery installation, close the back cover, charge and activate it to use. The product cannot be disassembled again. Please confirm that the product can be used normally before closing the back cover.
5. [Applicable scenarios] Outdoor sports/outings/home use/school use, etc

Attention:
The battery needs to be replaced with a new one. Do not use damaged/old/elevated batteries. The battery is too poor, it can burn out the motherboard, and in severe cases, it can explode!!!!!! Please install and use it correctly. If you have any questions before purchasing, please consult customer service first.
Parameters:
Product size: 10.1 * 2.6 * 2.6cm
Product output/input: DC5V2A
Supported batteries: 1 * 18650 or 1 * 21700
Hanging rope: USB-type-c interface
Color: Black/White/Blue/Pink/Purple

Product List:
18650 battery box * 1

Note：
1. Please allow a bit error due to manual measurement. please make sure you do not mind before you bid.
2. The color may have different as the difference display, please understand.