Uncle Bob's Matrix CANN 2.0 510 Battery

Beautiful Transparent Tube Design 

Small Size: 52mm(L)*23mm (D)

Digital screen readout 

4 Multiple voltage Settings: 2.8V, 3.2V, 3.6V, 4.0V

USB-C Port for Faster Charging

•500mAh Battery Capacity 
1.8V/12S Preheat Mode

 LED Lights Indicator