The invisible east pump is small and lightweight to place inside your a. Hands-free, more enjoyable and discreet way to express eastmilk. Note: 1. The deflt working time is 30 minutes, beyond which the east pump will tomatically shuts down or touch the power button to turn off the power. 2. It can not be d over 24 hours, otherwise it will be damaged easily. 3. Press level + or - : If the indicating light flashes for once, it means level ce successfully. If the indicating light keep flashing,it means it is the lowest level (level 1) or highest level (level 9). 4. There is a small hole in the of the suction cup for pouring the pumped milk. (As picture shows) Specifications: Nipple Part Diameter: 24mm/ 28mm (Optional) Quantity: 1 Set/ 2 Sets (Optional) lor: White/ Light Pink(Optional) Material: Siline + ABS + EPM Mode: Massage, Express, Mixed Adjtable Level: 9 Levels Each Mode Noise: about 45~50dB Input: 5A 1A Battery Indicator: Green (31%-100%), Orange (11%-30%), Red (1%-10%) Built-in Battery: 1 * 3.7V 1100mAh Lithium Battery Cup acity: 240ml / 8oz Cup Diameter: 11.5cm / 4.5in Motor Size: 8 * 6.8 * 3.5cm / 3.1 * 2.7 * 1.4in Each Item Weight: 252g / 8.9oz Package List: (Each set includes the following) 1 * Pump Motor 1 * 240ml/8oz Cup 1 * Siline east ver 1 * Memane 1 * Siline nnector 2 * Duckbill Valve 1 * B Cable (Type-C) 1 * er Manual (English)