Omron Cushion Massager To keep your body stress free and relaxed, massage is the best therapy. Therefore, to provide you one such wonderful device, Omron has come-up with HM-340 Massage Pillow, which you can easily place on the body part that needs to be massaged. You can use this massage pillow for neck, shoulders, thighs, hips, calves and back massage. It works on acupressure technology and thus, gives you relief from pain and tiredness effectively. It provides gentle heat to promote blood circulation and comes with easily removable and washable cover. Moreover, this electric massager from Omron is powered by AA batteries.