This set of breast pump is made of food grade PP and silicone materials, non-toxic and safe to use. High temperature resisting, can be sterilized in boiled water. The sucker is soft and comfortable, making you feel very natural. A good helper for moms to feed their baby and solve problems of painful while breastfeeding. Features: Made of food grade PP and silicone materials, BPA free, non-toxic and safe to use. Adopt smart chip and pressure pulse method, quick and high efficient. Adjustable massage/sucking mode with 9 suction levels and 3 massage levels, choose the comfortable level as you need. Anti-reflux design separates the milk from the air, safe and hygienic for baby and mom. The soft massage provides a gentle and comfortable massage, more effective to increase lactation. Automatically cut off when constantly works for half and hours, 30 minutes are optimal for sucking. Dual power supply, plug and play or battery operated, convenient to use. Specification: Condition: 100% Brand New Absorption Frequency: 14-60 times / min potassium Noise: ≤ 47 DB Material: PP, ABS, silica gel Color: Yellow, Pink (Optional) Power Supply: AC: 100-240V DC: 6V Flow Rate: > 3.0 LPM Automatic Shutdown: 30 min potassium Weight: 1.39kg/3.1lb (With all accessories) Application Environment: 5-5 (TC / 41-122t, Relative Humidity: 30-80% Refrigeration environment: - 2 (TC-6 (RC / - 4t-140t, Relative Humidity: 30-85% Battery: 4 AA batteries (NOT INCLUDED) Host Size: Approx. 13 x 10 x 4.5cm / 5.1 x 3.9 x 1.8in Package List: 1 x Host (Battery Not Included) 1 x Breast Pump 1 x Plug 1 x Catheter 1 x Reverse Flow Valve 1 x Milk Bottle Cap 1 x Manual 1 x Accessory Bag Note: 1. Power switch/pause key: In the shutdown state, press the button for 2s to start up, in the running state, press the button to stop, in the suspension state, press the button for two seconds to display the shutdown. 2. Please allow 1-3cm error due to manual measurement, thanks for your understanding. 3. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object, thanks for your understanding. .