Deluxe Lithium Ion - Includes Wahl Exclusive heads: Spine – Massages around the spine, Deep Muscle – All over body massage, Triad – Kneads deep into muscles, Flex X – Wide surface area massage, Flat Disc – Extra wide surface area massage For Full Body Massages – Using a combination of our attachment heads allows you to experience a professional grade massage, from a deep invigorating feeling to a gentle soft massage and everything in between Cordless Convenience – Lithium power along with a portable charger makes it easy to take professional-grade massage wherever life takes you & with the unit only 1.9 lbs you can use it anywhere, whether it’s at home, at work, in the car, or travel; provides up to 7 hours of run time on a single charge Variable Intensity - Offers a customized experience with variable intensity that allows you to choose your pulses per minute with the variable speed dial from low (2000) to high (4000); Wahl has lower lows and higher highs compared to competitors massagers Deep Kneading Power – Our sleek ergonomic therapeutic percussion massager features an extremely powerful motor with up 4,000 pulses per minute that helps relax and relieve muscle tightness or soreness as well as provide soft to gentle massages Perfect Gift – Wahl clippers, trimmers, massagers, and shavers make great Christmas gifts for women and men. Give the gift of Wahl this holiday season. Recommended Charge Cycle - To maximize the health & life of the unit battery, charge the unit in full at least every 6 months