Battery Tester Just need to attach cell

Just need to attach cell phone finger ring holder to a flat and smooth surface

Benefit: Natural

eco-friendly

Remote function modes: 20 static color and 6 dynamic color

and the storage is suspended to extend the service life of the brush

Battery Tester Just need to attach cellMulti level fixed battery card slot for battery measurement of various specifications. FEATURES: Measurable battery types: various button batteries, 5, 7, 9V square batteries, etc. Function: It can measure whether the battery is full or not. The color of the indication indicator is as follows. Red (RE PLACE replacement or RE CHARGE charging): If the indicator pin points to this block, the battery under test needs to be replaced or recharged, that is,