Specifications: Material:  ABS + Aluminium Alloy.  Color:  Black, Grey, Green, Pink.  Vibration Intensity:  4 Adjustable Levels.  Motor Speed:  3200RPM.  Motor Power:  25W.  Battery Type:  Built-in 2000mAh Rechargeable Battery.  Power Supply:  USB Charging.  Massage Heads:  Fork Head, Bullet Head, Flat Head, Round Head.  Size:  Approx. 137x90x46mm/5.39x3.54x1.81 inch.     Features: * Small Size (only 137mm length, 400g), convenient for daily use and travel. You can put it in your pocket.  * Rechargeable Battery and Type C interface to quick charge: It adopts 2000mAh lithium battery and supports type-C fast charging. 10 minutes per day you can use it consistently for 60 days, no longer worry about the power.  * 4-speed adjustment, you can choose that you fit. Effectively reduce muscle stiffness and sore pain, increasing blood circulation. * The Newest Noise Reduction Ultra-quiet Technology: It adopts brushless motor, can explode strong power and keep silent running at the same time.  * Including 4 different massage head, meeting various demand.  * Suitable for recovery after sports fatigue, rehabilitation after sports injury, pain relief during the convalescence period of surgery, as well as reducing inflammatory reaction.     Package Included: 1 x Muscle Massager.  4 x Massage Heads.  1 x Type-C Charger Cable.  1 x User Manual.  1 x Packing Box.     Notes: 1.Manual measuring, please allow 1 ~ 2 cm error,thank you.  2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.Please understand, thank you