Features: Experience calf relaxation with our Heat Therapy Calf Massager, featuring advanced massage modes for comfort. The massager boasts three intensity levels, and a soothing heat function to enhances blood circulation and alleviate muscle soreness. Suiiable or athletes seeking post workout relief, seniors with leg discomfort, and office workers needing respite from prolonged sitting. Perfect for home use during evenings or at office to tired legs, this portable massager is also a great companion for travel. With its timer function, you can enjoy a worry free massage session, ensuring your relaxation time is as efficient as it is comforting. Specifications: Component:Composite Voltages: 3.7V Charging voltage: 5V1A (not exceeding 2A) Applicable leg circumference: about 26-46cm. Working time: 15 minutes Battery capacity: 1800mA Size:Approx.50x35mm/19.68x13.77inch Package Includes: 1Pc Leg Massager 2Pcs Leg Massager note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.