SIZE - 80mm x 52mm
POWER CONSUMPTION - negligible very long battery life. (9 volt)
RANGE - metres square.
ELECTRO STIM - Comes with lead to attach to ears giving fast relaxation
3 FREQUENCIES - Relaxation 0.5 - Mediation - 7.83 - Health 10.2
USE - Carry in pocket ,bag ,desk ,car seat or within 2 metres of person. Excellent for fatigue - jet lag - tension;