ACTIV 300M – PROFESSIONAL MONO BLUETOOTH HEADSET WITH MAGNETIC CHARGING BASEWIRELESS BLUETOOTH 5.0 CONNECTION – MONO FOAM EARPAD WITH SYNTHETIC LEATHER – UNIDIRECTIONAL FLEXIBLE AND ADJUSTABLE MICROPHONE – LIGHT ALUMINIUM HOOP – LITHIUM BATTERY 180 MAH – AUTONOMY : 17 HOURS – STAND BY : 250 HOURS – CHARGING TIME : 2 HOURS – COL. BLACK.