Lasuney Active Noise Cancelling Earbuds, Active Noise Cancelling Earphones, 20H Playtime ANC Wired Earbuds in Ear Stereo Awareness Monitor Headphones with Microphone and Built-in Magnets Description Features: [Active Noise Cancelling Functionality] LASUNEY Active Noise Cancelling Headphone adopts advanced active noise reduction technology, which mainly focus on cancelling out lower frequency sounds like engines, aviation environment, trains, traffic noise,the noise of busy office and so on. So you can focus on your music, movies or books without being disturbed by outside noise. NOTE: ANC earbuds can not cancel out the middle-high frequency sounds like snoring, talking, music and traffic horns etc.[Built-In MEMS Noise Cancelling Microphone] LASUNEY ANC headphone can eliminate more than 85% of lower frequency noise. Built in MEMS noise cancelling microphone can reducing the noise of busy office/ city traffic/ airplane cabin as much as possible for crispier phone calls.[Catch Announcement with Monitoring Mode] Slider switch turns ANC on and off. Three button remote allows you to manage calls and music. When the ANC is turned on (the indicator light shows green), you only need press the button of monitor mode, you will enter the monitor mode (the indicator light shows blue), you can clearly hear the announcement of the airline or subway and what is saying around you without removing the headphones.[Well Performance in Soft Music Playing] LASUNEY Noise Cancelling Headphones built in 10mm horns and wool diaphragm, which shows good performance when playing soft music and have a natural mellow voice. You can enjoy your music life and your peace. Noise Cancelling Earphones play for up to 20 hours with 2-hour charge.[Comfortable Wearing and Suitable Devices] We offer S, M, L sizes ear tips and ear hook, you can find your optimal fit. It also features 3. 5mm audio jack and braided line. Compatible with most 3.5mm enabled devices like: iPhone, Android devices, iPad, laptop, MP3,MP4 and other portable music player. NOTE: Make sure your device has 3.5mm audio port or you have 3.5mm headphone jack adapter. Product Details: Handling We will ship all orders within 3 business day of payment. Delivery We Ship Outside of the Continental US. Return Policy All items qualify for returns within 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged. Feedback We take our reputation seriously, we buy and sell online, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction.