NeuroField Q21 21-Channel EEG System package. Includes Q21 amplifier (cap version), QCheck unit, Waveguard Connect 21-channel adapter (XC-301), 2 Waveguard reusable caps, 9mm ear sockets, USB/CANbus adapter, 2 rechargeable Li-ion batteries with dual charger, power supplies, cables, electrode jelly/syringes, and NeuroField software with EEG analysis. Previously used in clinical setting. All components powered and functional at last use. Asking $5,000.