Enjoy Your Favorite Music , With These Exquisite Headphones! The Bluetooth headphones will give you a deep, powerful, and immersive sound at any volume, make your overall listening experience just that much better. Our goal has always been committed to providing our customers with better sound quality as the focal point of our engineering. HiFi Stereo Sound Quality Dual 40mm drives and deep bass technology to offer an almost concert hall-like feel to your favorite music, let you experience music like never before. 33ft(10m) Bluetooth Cover Range No need to carry cellphone all the time, neither keep stay in front of computer, Bluetooth headphones allow you to walk around the house and enjoy music non-stop, working range up to 33ft(10meters) Pair Easily, Stable Connection Adopting advanced Bluetooth Technology, these wireless headphones are compatible with your most electronic device such as MP3, Phones, Tablet, PC, and Laptop... Foldable Design You can easily fold the headphone into a portable bag and minimalist travel case wherever you go once, support folded multiple times. It occupies lesser space and little weight in your back bag, take your favorite tunes with you. Wireless Hand Free+Wired Wireless mode set you free from tangled cables. Included audio cable help you continue to enjoy music without electricity, unlimited access to immersive sound at any time. Comfort Fit Lightweight bluetooth headphones and memory protein earmuff provide all day comfort for ears and head,you'll be able to enjoy your own entertainment without disturbing families. BT Version: V5.3 Audio range: 20Hz.-20KHz BT profiles: HSP.HFP A2DP.AVRCP Emission range: >15M Music/Talk times: About 10-20 hours Charging times: About 2-3 hours Stand-by time 1000 hours Music player: Stereo Battery: 3.7V/400mAhLiPO FM audio: 87.5-1080MHz TF card input: Microsd 128M-32G Audio formats: MP3 Aux line in: 3. 5mm socket Speaker: 40mm/32Q Microphone: 42dB 1* Bluetooth Headphones1* USB-C Charging Cable1* 3.5mm AUX Cable1* User Guide Safety Precautions Please do not split the headphones. Keep the device out of extreme heatand humid Please do not over charge. If dont use it for a long time please still to charge battery from time to time in order to protect it. Please wear the headsets correctly during use and adiust the angle of the headsets in the pinnate make it achieve the best comfortable and sound quality. Charge the headphones: When the power of the headset is low,Please charge it in time.And connect the charger correctly,The red light is always on during the charging process, and the red light is off when fully charged,Please take out the charger.