Standby time: 30Hrs Bluetooth version: 5.0 Features with -control sensors, can largely minimize the pressure to your ears when you use the button for various functions and wake up voice assistant. Charging box capacity: 280mAh 1 x Charging Cable The charging case is equipped with built-in 280 mAh battery which can charge the earbuds 3.5 times, gives up to 18 hours of continuous music time. Transmission distance: about 32ft (no obstacle) 1 x Charging Case Multifunctional key, support songs, phone call, volume control, wake up voice assistant. Earphone charging time: about 30 minutes The latest Bluetooth 5.0 technology on both bluetooth earbuds, provides faster pairing, stable connection and signal transmission (32ft no-obstacle range). need to take out two earbuds or any single earbud after you open Bluetooth function, they will open and connect automatically. Powerful Bluetooth 5.0 chip that perfectly matches tablets, laptops, iOS, and Android smartphones! Built-in high-definition microphone, intelligent noise reduction, high-quality call. Earphone battery capacity: 40mAh Mini and Ultra Lightweight in-ear design stability and comfortable. The sealed and interior Nano coating can easily sweat and rain, for workout, running, jogging, hiking, biking, , doing yoga, travelling etc. 2 x Wireless Earbuds 1 x Manual D10100n Zs10