(Pre-order) Mando Grav charge V5 with electronics(5 LEDS +Mp3 Sound)

Mando Grav charge:
Aluminium body
 resin Red cap
resin clear ring
magnet included
electronics
MP3 sound! (Customizable)
customizable code
Lipo rechargable battery compatible! That can last several days standby
one single button to turn on (no more sliding switch of the prev ver.)
new design & more compact electronics
improved magnet strenght for better adhesion
identical external form factor respect to the prev one
can upgrade the V4 version with this new one!
NO battery included! https://s.click.aliexpress.com/e/_DCjquSX
 
Kit options come unassembled!
 
Measures: outer diameter clear ring 51,6mmBody outer diameter 42.6mmHeight 31mm
Check out the set of 3 and Save on the bundle!
Compatible with JJ Industries holder!
Taking Preorders! 
Estimate shipping in 3 weeks