RENPHO Thermacool Deep Tissue Muscle Massage Deep w/ Heat and Cold, Carry Case, Body Massager for Neck and Back NEW in box. never been opened/used Powerful Percussion Massage Gun Deep Tissue - This massage gun delivers depth high penetration reaches and massages muscle tissue 10mm depth for better relieve muscle fatigue and pain 1 Heating and Cooling Head & 4 Standard Massage Heads – Comes with a heating and cooling massage head that can heat up to 113°F or cool down to 47°F for deeper muscle relaxation and stress relief. Choose from 4 standard massage heads. 15W PD Fast Charging & Type C Charging - Supports 15W PD Fast Charging. Up to 3200rpm(5 speeds) & Super-quiet design - 5 speeds from 1800 to 3200rpm are provided for different muscle groups. exercise, massage gun, CrossFit, yoga, stretch, muscle pain,