Jabra 4050 Bluetooth Headset Voice Guidance - Voice Guidance provides audio alerts announcing Connected and Low Battery status levels Jabra StatusDisplay - Jabra StatusDisplay with two intuitive and clear LEDs on the back of the headset shows when to recharge the battery and current connection status Multiuse - Connect to 2 Bluetooth devices at same time, up to 8 total EDR and eSCO Techology - Talk loud and clear: The Jabra VBT4050 picks up the users voice and delivers clear audio quality to the listener through EDR and eSCO technology