Features: Detachable body for double-length functionality, adapting to diverse usage scenarios while efficiently alleviating muscle soreness; Infinitely variable speed control with 5 speed high-frequency vibrations massage, offering adjustable intensity from gentle to vigorously. 10mm massage penetration reaches deeper muscle groups, effectively relieving fatigue for enhanced relaxation; Brushless high-speed motor delivers stable, powerful output with extended life, featuring high frequency yet minimal vibrations sensation; Highly elastic body design facilitates pressure application without hand fatigue during prolonged use; High-capacity power battery delivers extended running time; integrated hardware and software safeguards prevent overcharging or deeply discharge; With 4 Interchangeable heads and Low-noise operating ensures undisturbed relaxation Specifications: Product size: As pictures Color: black Battery capacity: 1500mAh Charging time: about 2hours Usage time: about 2hours Voltages: DC5v/2A Power: 15W Charging : TYPE C Usage time: 15 minutes/cycle Mode: 5 speed intensity Package Includes: 1PC long handle elbow fascia hammer detachable JAG4D new model note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.