Laser, 4MB, Charging and Communication Cradle, RS232, Integrated barcode scanner and built-in IR/IrDA port, acoustic coupler and wireless communication, sustains multiple drops from 1.2m to concrete, 2MB data memory and 6MB program memory, 16-bit CMOS, 21 keys, and LCD 100x64 with LED backlight, AAA alkaline battery or rechargeable Li-ion battery