jakcom n3 smart nail chip new patented product of other electronics as phone accessories diy supply 1000 v bicycle gps

smart nail packaging details: inner white box: unit g.w is about 6g, unit size is 7.2cm x 4.8cm x 1.3cm; outer brown box: unit g.w is about 6790g, unit size is 53cm x 29cm x 37cm , max with 1020 pcs smart nails.