Hộp đựng bút thông minh đa chức năng có khóa mật khẩu điện tử

Feature: Multifunctional password lock pen case Material: ABS plastic Features: set your own password, USB charging, magnetic buckle, calculator, erasable whiteboard Size: 21.5x6.7cm 180° split design for easier access Two-sided classification, clear at a glance, calculate the scribble board, easily find stationery, and learn more efficiently Password lock design: 4-digit password protection (customizable modification) USB interface: rechargeable, fast and convenient The calculator adopts 3D stereo technology, does not fade, the keys are clear, and the touch is comfortable Multi-function and large storage space: calculator, small mirror, erasable board, large space for 20 pencils Beautiful graffiti Color as shown Package included: 1Pcs Electronic pencilcase