The optical pulses required for the under-sampling are generated by a combination of an electrical comb generator and an electro-absorption optical modulator

An electric comb particularly suitable for disentangling and styling unmanageable hair using a plurality of oscillating teeth that are individually mounted and guided.

Available at most drug stores, the electric comb beeps when it comes into contact with a nit and electrifies it immediately.

Electric brush These are electrical devices, with cells or batteries, which are used to cut knots or eliminate parasites.