The TI-Nspire CX CAS Teacher Pack. Contains: 10 handhelds, 10 rechargeable battery, 10 quick reference card, 1 getting started guide, 1 reference guide, 1 start here materials, 5 unit-to-unit USB cables, 10 unit to computer USB cable, 1 CX docking station. includes 10 slides cases in addition to the screen clings.