Stereo speaker& wireless V5.2Sleep Deeply Anywhere, Anytime. Insomnia will be in your past. True HD high fidelity sound featuring latest wireless V5.2 technology that produces great sound quality. Block light to make your sleep better, allows you to listen to music without wearing additional headphones, which make you fall asleep faster Wireless Sleep Eye MaskIt can pair your any Smartphones Tablets easily.Compatible with Android and Ios. such as iPhone, iPad, Android.But It can't connect to 2 device at the same time, If you want to connect a second device, please cancel the first device first. Chargeable Battery and AdjustableBuilt-in 200mAh high-performance battery, Charge via USB Cable. Charge about 2-2.5 hours provide more than 10 hours playing time. No"battery low" to wake you up.you can adjust the position of the speakers to near ears to hear more clearly. comfortable sleep anywhere -air travel, relaxation, meditation, insomnia. Comfortable Material and W