The Sharper Image Powerboost Deep Tissue Percussion Massager is the ultimate post-workout recovery tool. This advanced massage gun uses deep tissue percussion to target sore muscles and tight knots. Adjust the percussion's strength to any of the 7 built-in speed settings to cater to your body's needs. With 6 unique attachments, you can easily tailor your recovery process. The Powerboost is whisper quiet and features a user-friendly LED touch screen display for seamless operation. Enjoy up to 3 hours of uninterrupted use with a single charge and bring it with you for on-the-go recovery.