①. SOOTHING SOUNDS. Including Lullaby, Shushe, Fetal Heart, Rain, White Noise and Ocean Waves. 6 relaxing sounds help baby fall asleep on their own. ②. Rotate the bottom to choose a pleasant sound for baby. The volume is also adjustable to provide a comfortable sleep background. ③. Voice sensor and automatic shut - off. Each sound automatically stops after 30 minutes. If the external sound exceeds 70 dB (baby crying), the soothing sound will turn on. There is no need to turn off the device when the baby falls asleep. ④. 1800 mAh battery. Built - in 1800 Ah battery, fully charged in 3 hours and playing for 10 hours. No need for an additional battery. Comes with a USB charging cable. ⑤. Safe material. The Sleep pacifier is made of baby - safe material and creates a friendly playing environment. ⑥. Lightweight and mini size, suitable for travel and outdoor use. You can hang it on the handle of the stroller, crib, car seat, etc. ⑦. How to use. The product function setting is divided into 2 upper and lower parts. The upper part controls the switch button and the sound volume; the lower part controls the sound mode. You can adjust it by gently rotating the top and bottom. It is easy to use! ⑧. Product Description: 6 soothing sounds: lullaby, dog, fetal heartbeat, rain, white noise and ocean waves. This device creates a cozy and harmonious sound environment to help your baby fall asleep and stay asleep, wherever he is. You can hang it on the handle of the stroller, crib, car seat, etc. ⑨. Specifications - Color: Orange and White - Material: ABS - USB Cable: 1.2M - Charging Time: 3 Hours - Playing Time: 10 Hours - Output Power: 3W - Size: 8*4*10cm - Weight: 136g - Lithium Battery: 1800mAH - Application: For babies, toddlers and tired mothers ⑩. Package Includes: - 1 x Soothing Sleep Sound Machine - 1 x USB Cable - 1 x Instructions ⑪. Tips: Gently turn the power switch button on the top of the product until you hear a click. When the gear reaches both ends, avoid turning both ends hard as it may damage it.