ENGLISH3. When the battery is fully charged,the green indicator light isdisplayed. Disconnect the chargerfrom the headset, then from thewall outlet. Press the cover on thecharger connector.The fully charged battery has powerfor up to 12 hours of talk time, up to375 hours of standby time, or up to 10hours of music playing time.To check the battery charge when theheadset is not connected to a charger,press the power key when the headsetis connected to a mobile device. If theindicator light is green, the chargelevel is sufficient. If the light is yellow,you may need to recharge the batterysoon. If the light is red, recharge thebattery.When the battery charge is low, theheadset beeps every 5 minutes andthe red indicator light flashes.Switch on or offTo switch on, press and hold the powerkey for about 5 seconds. The headsetbeeps, and the green indicator lightflashes slowly while the headset triesto connect to a last used device thatsupports the HFP Bluetooth profile.When the headset is connected to adevice and is ready for use, the blueindicator light flashes slowly. If theheadset has not been paired with adevice, it automatically enters pairingmode.To switch off, press and hold thepower key for about 2 seconds. Theheadset beeps, and the red indicatorlight is briefly displayed. If the headsetis not connected to a device withinabout 30 minutes, it switches offautomatically.