Description Connection method: Bluetooth Wearing method: in-ear Frequency range: 2.4ghz-2.48ghz Charging box: 300mah battery Headphone capacity: 300mah Charging time of the charging box: 1-2 hours Connection range: 10-12 meters Speaker specifications: Each earplug has a built-in 11mm woofer and 6.5mm tweeter. Microphone:yes
