Specifications: Name: ?Sound Machine Model: Q3 Color: white : ABS and silicone Voltage input: DC5V 0.5 Power: 1W Battery capacity: 300mAh Use time: 23 hours (measured about 36h) Charging time: 1 hour Certification: , FCC, ROSH Product weight: about 66g Package weight: about 125g Product size: about 93 80 28mm 3.66 3.15 1.10inch Packing size: about 158 106 31mm 6.22 4.17 1.22inch ?meter 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, blue light) 60min (green light, blue 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, blue and red indicator lights show that the power is 30 70 . 5. Small and , with lanyard for delivery, easy to carry and use. Packing List: 1 Host 1 USB Cable 1 English Manual 1 Lanyard 1 Color Box Note: 1. Due to the lighting effects angles, there is color difference in the product, please understand. 2. Due to manual measurement, there is tolerance in the product size.Not Only 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 dormitory baby nursery or any place you want to rest assured. Automatic Shutdown Timer: This white noise machine can play continuously without interruption or there is an automatic shutdown timer set to 15min 30min or 60 minutes green blue red light display to avoid forgetting to turn off when you fall asleep saving energy. RECHARGEABLE AND PORTABLE : USB rechargeable USB cable included and portable with clip and lanyard make it great sound machine for baby travel or onthego Hang it on stroller bag or everything to get restful sleep anywhere You can operate it by battery or plugging into the mains up to 23hrs running on single charge. 10 Smooth And Natural Sounds: White 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 quiet environment and let you fall asleep quickly And rest completely. Automatic Detection of White Noise: 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 610m.