Transmission range 10 meters Support music, voice control, call function, power display Custom processing Yes Bluetooth protocol 4.1 Channel stereo Founded in 2015, WK is a new HK brand which treats fashion elements as its core design concept. Starting from mobile accessories, nowadays WK is a worldwide famous brand with full range of smart life products. WK design is the weathervane of global digital comsuption trend. It is not just a brand but also a new lifestyle. Nothing but fashion, WK-born to try! Brand WK Design SKU 100218423_NP-1020473425 connector_1 3.5MM Wearing type In-Ear wireless_connectivity Bluetooth Model BS300