True Wireless Bluetooth Technology: Built-in Bluetooth 5. 0 Chip, Offers Fast Speed, Stable Connection, Enable to 33ft Transmission without Obstacle. You Can Use the Twins Headphones to Play/Pause Music/Video, Play the Next Songs, Answer/Reject Calls, Activate the Voice Functions. It comes with S, M, L three pairs of sizes ear tips in the package. It universally fits the most of people who are fond of true wireless earbuds. It supports automatic power ON/OFF, automatic pairing, automatic charging. Binaural Call and Hifi Sound Quality: The Call Voice and Music Will be Output from Both Ears. You can Enjoy a Really Wireless Music World and Hifi Stereo Call Sound. Adopt Bluetooth 5. 0 HD Rendering Technology that Produce Incredible Sound Quality with Deep Bass and Crystal Crisp Treble. Built in High Quality Noise Reduction Technology Chip, Can Block out lots of Surrounding Noises During Sports, Running, Jogging , Hiking etc. Portable Charging Case: The Twins Wireless Earbuds Can Last for 3-4 hours Music Time On a Single Charge. The Charging box (500mAh) is a Power Bank, It Can Charge the Twins Earbuds for 4 times, So the Twins Earbuds Can Last Up To 12-16 hours. You Can Travel, Workout, Camping, Hiking Without Worrying About Battery Shortage. Compatible With Most Devices: Mini Bluetooth wireless earbuds compatible with all Bluetooth enabled devices, such as Apple iPhone X 8 plus 8 7 plus 7 6s plus 6 5s iPad iPod Nano 7 iPod Touch Sony Samsung Galaxy S7 S8 Plus and other Android Phones. Ergonomic Design Allows for Ultimate Wearing Comfort to Match any Active Lifestyle, Such as Running, Jogging, Cycling, Driving, Camping, Hiking, Gym Exercise, Business, Relaxation and More Lifestyles. This earbuds can be used together or along. 100% SATISFACTION : With 6 months Manufacturer’s and 30 days no-questions-asked return policy. Value for money , If there are any issues, we’ll give you a total refund or a replacement, We just want your 100% satisfaction. Please purchase this wireless earbuds confidence, never let you down.