The basic composition of the product: 1.Beer parts ABS shell, TPE liner, tail cover, silicone buttons, replaceable expansion kít, charging port and screw port silicone plugs 2.Component part 370-High voltage version telescopic motor-2cm stroke, USB-C charging cable. 3.Electronic part Battery 7.4V lithium polymer battery (tentative battery capacity 1200mAh, model 102540, multiplier discharge), PCBA, charging cable. 4.Packaging 1. Color box/blister; 2.Manual; 3.Charging cable 5.Product Size 275.5mm × 168mm × 88.5mm 6.Net weight estimated about 940g. Functional Modules: 1. telescoping modes; 2. 4 telescoping speeds The way of use: 1. the product can be used after cleaning; 2. after use, remove the TPE liner can be placed under the faucet for rinsing, the host is not waterproof; 3. it is recommended to use the product with personal lubricant; 4.Type-C charging. Function description: 1. Speed mode has 4 modes. 2. Forward/reverse transformation mode has 7 modes. Function button definition: (status light: 7-color light) There are a total of four buttons: mode key 1, speed key 1, mode key 2, speed key 2, (the four buttons are divided into two pairs, corresponding to the function of the same, just placed in different positions).