Breakthrough professional-grade deep tissue percussion massager Features: Smart App Intergration Via Bluetooth 240+ Minute Total Battery Life Led ring with Pressure Meter 14MM Amplitude for deep targeted treatment Customizable Speed range 50lbs Certified Force Specifications: Dimensions: H:31.0 x W:24.9 x D:11.2 cm Colour: Black Guarantee:24 Months Batteries Required: Yes Model Number: 137-5512