Homedics: Neck & Shoulder Massager W Heat Ergo Joint support Become ushered into a new You can with Apex Become ushered into a new chapter of mental power and function with a physical energy that is slow to die with MENTALITY No caffeine means you can take your BCAAs at night to really maximize your muscle recovery because at night is when your muscles rebuild HoMedics NMSQ 210 Neck & Shoulder Massager W Heat Ergo FeaturesInvigorating vibration massage for the neck and shouldersSoothing heat enhances your experience2 speeds: choose low or highErgo comfort design flexes for a perfect fitBattery and adaptor driven (4 AA batteries not included)