Powerful Percussion Massage Gun Deep Tissue: With premium metal housing and a super powerful brushless motor, the muscle massage gun delivers depth high penetration reaches and massages muscle tissue 10mm depth, better-relieving muscle fatigue and pain Hot and Cold Therapy: Renpho Massager gun deep tissue with Heat comes with a heating and cooling massage head(No built-in battery) that can heat up to 113 °F (45 °C) or cool down to 47 °F(8 °C) for deeper muscle relaxation and stress relief 15W PD Fast Charging & Type C Charging: Support 15W PD fast charging(A-C and C-C support), fully charging just needs 1.5 -2 h while the normal model needs at least 4 h; Powered by 5 X longer cycle rechargeable battery for anytime use portably Up to 3200 rpm(5-speed) & Long Service Time: 5-speeds from 1800 to 3200 rpm are provided for different muscle groups, aiding in sore muscle massage, relaxing and shaping different muscle parts; Brushless motor life is almost 50 X longer than brush motor Ultra-Silent Ergonomics Muscle Massage Gun: This great massage gun is for athletes' hand-back leg workout; It is built with a quiet brushless motor, as low as 40 dB, which blends in with ambient sound to offer you an enjoyable and quiet massage experience 5 Different Massage Heads: This precision massage gun set includes 1 heating and cooling Head & 4 standard massage heads to suit your different needs and relax your body by targeting different muscle groups to relieve your stress and enhance sleep