[. . . ] Subjecting your ears to these tones may lead to permanent loss of hearing. The volume required depends on the conditions under which you use the device. [. . . ] Fm Phone operation: Pairing the headset with a phone Before you can use the headset to make calls, you must pair the headset with your phone. Pairing creates a secure link between your phone and the unique ID of the headset. 1 To put the headset in pairing mode, press and hold (longer than 5 seconds) the multi-function button until the LED flashes red/blue. 2 Scroll to the Bluetooth menu in your Gigaset phone and search for active devices. 4 Select ZX600 and, when prompted, input the default passkey (0000). When successfully paired, the red/blue LED on the headset changes to flashing blue. When you pair the device with a ninth device, the oldest paired device is deleted. 8 Gigaset ZX600 / en / A31008-N1151-R101-6-X119 / ZX600_70x102_multi. Fm Phone functions at glance Headset Function Power on Power off Pairing Answer incoming call Reject incoming call End a call Volume+ VolumeHeadset Status Power off Power on Power off Incoming call Incoming call Ongoing call Power on Power on Button Long press multi-function button Very long press multi-function button Very long press multi-function button Short press multi-function button Long press multi-function button Short press multi-function button Short press button . Specifications Battery capacity Talk time Standby time Weight Size Bluetooth Environmental conditions in operation 100 mAh Li-Polymer up to 7 hours up to 170 hours 15 g 55. Removing the battery Note: Your device uses a battery that is subject to EU Directive 2006/66/EC and national legal regulations based thereon. The device and the battery contained therein may not be disposed of in unsorted household waste; they must be disposed of at a facility for separate collection of waste. The best approach is to have it removed and correctly disposed of by a professional at an official collection point. Caution: Opening the device will result in its being damaged or destroyed. [. . . ] It is a precondition for reuse and recycling of used electrical and electronic equipment. For more detailed information about disposal of your old appliance, please contact your local council refuse centre or the original supplier of the product. [. . . ]