1. Umukunzi mwiza wamagare.
2.Bikwiranye na santimetero 4,7 kugeza kuri 7 za terefone zigendanwa zose, kuri diametre izengurutse 0,6-1.57 (hafi cm 1,6-4.5 cm), kubuntu
3.Umugongo ufite urufunguzo rwo gufunga, gufunga ibumoso ugana iburyo, gufungura urufunguzo rumwe udatinya guturika, gufunga imashini
4.Gushiraho byarangiye mumasegonda 10, nta bikoresho byingirakamaro bisabwa
5.Kanda rimwe, imikorere imwe y'intoki