Model:

N31 computer version [one single special, 76mm wide small face single]]

N31BT high-speed Bluetooth version [a single dedicated, 76mm wide small face single]]

N41 Computer Edition [Special for One and Two Union Orders] Postal Shunfeng Logistics Orders Cross-border Label Available

N41BT Bluetooth Computer Edition [One and Two Orders Available] Postal Shunfeng Logistics Orders Cross-border Labels Available

N31C computer version

N51 computer version [40-104mm available]]