Specifications: Brand AIRAUX Model AA-UM3 Color Black Bluetooth Version V5.0 Battery Earbud 50mAh Charging case 500mAh Charging time Earbud 2h Charging case 2.5h Input DC5V Music time 4.5h Talking time 3h Weight 95g Bluetooth operating distance 10m Dimension Earphone:36.5*10*15mm Charging Case:100*59*37mm   Features: Premium Diaphragm & Dynamic Driver Enjoy comprehensive acoustics and high fidelity stereo. Produces accurate vocals, powerful low frequencies and balanced mid frequencies. Touch Control Intuitive touch control lets you activate all features with just a tap on the earbud. Bluetooth 5.0 Bluetooth 5.0 technology, using the latest Bluetooth technology of version 5.0, it can be compatible with the old version, bringing the advantages of faster and longer transmission distance. Unparalleled Elegance and Exquisite Styling Creatively designed to match the contours of a dolphin jumping out of the water, and feel as smooth as the skin of a baby. Comfortable & Firm Ergonomically design, ultra-lightweight, free of burden with long time wearing.The flexible ear-hook fits any ear shape. It’s stable and compatible, suitable for doing sports. Easy To Use When removed from the charging box, the earbuds automatically power on and connect to the previously paired device. They will also automatically turn off when placed back into the charging box.   Package Includes: 2*Bluetooth Earbuds 1*Charging Case 1*Charging Cable 1*User Manual