Smooth And Sounds: noise, ocean waves, bird sounds, heartbeat sounds, clock sounds, cricket sounds, running water sounds and 3 lullabies. Choose sounds according to your preferences and needs to create a quiet environment and let you fall aquickly And rest completely.2Automatic Shutdown r: white noise machine can play continuously without interruption, or there is an automatic shutdown timer set to 15min, 30min or 60 minutes (green red light display) to avoid forgetting to turn off when you fall asleep, saving energy.3Automatic Detection of : Without power on, press and hold Auto for 2 seconds to enter the noise detection for 10s. If there is noise around, it will automatically turn on the music and stop after 15 minutes. The detection will be cycled. The detection distance is 6-10m.4Not for Sleep: Our white noise sound machine can not only cover up the noise, improve the quality of sleep, and relax. It is suitable for use at home, office, dorm y, nursery or any place you want to rest assured.5Small and Portable: 9.3*8*2.8cm, oc ying a small space on the bedside table, it can be easily put into your bag or suitcase, making it a travel companion. USB charging, charging once, the longest can be used continuously for 36h, which can be used for a long time.1. 10 Smooth And Sounds: noise, ocean waves, bird sounds, heartbeat sounds, clock sounds, cricket sounds, running water sounds and 3 lullabies. Choose sounds according to your preferences and needs to create a quiet environment and let you fall aquickly And rest completely.2. Automatic Shutdown r: white noise machine can play continuously without interruption, or there is an automatic shutdown timer set to 15min, 30min or 60 minutes (green red light display) to avoid forgetting to turn off when you fall asleep, saving energy.3. Automatic Detection of : Without power on, press and hold Auto for 2 seconds to enter the noise detection for 10s. If there is noise around, it will automatically turn on the music and stop after 15 minutes. The detection will be cycled. The detection distance is 6-10m.4. Not for Sleep: Our white noise sound machine can not only cover up the noise, improve the quality of sleep, and relax. It is suitable for use at home, office, dorm y, nursery or any place you want to rest assured.5. Small and Portable: 9.3*8*2.8cm, oc ying a small space on the bedside table, it can be easily put into your bag or suitcase, making it a travel companion. USB charging, charging once, the longest can be used continuously for 36h, which can be used for a long time.Sound MachineQ3whiteMaterial: ABS and siliconeVoltage input: 5V=0.5A: 1Wcapacity: 300mAhUse time: 23 hours (measured about 36h)Charging time: 1 hour: CE, FCC, ROSHProduct weight: about 66gPackage weight: about 125gProduct size: about 93*80*28mm/3.66*3.15*1.10inchPacking size: about 158*106*31mm/6.22*4.17*1.22inchmeter function:1. 10 sleep-aid music: white noise, lullaby 1, cricket call, sea wave, clock, bird call, heartbeat, lullaby 2, running water sound, lullaby 3.2. Timing function: 15min (green light) / 30min (green, light) / 60min (green light, light and red light) can be timed to avoid forgetting to turn off when you fall asleep.3. Automatic noise detection button: without power on, long press for 2 seconds to enter the noise detection for 10 seconds, turn on the music for 15 minutes and then stop, loop detection, detection distance 6-10 meters.4. Charging instructions: green, and red indicator lights show that the power is 30%/70%/100%.5. Small and mini, with lanyard for delivery, easy to carry and use.Packing List:1*Host1*USB Cable1*Lanyard1* Box