Plantronics Blackwire C720 User Manual download pdf (Page 12)

6 To use mobile phone away from PC, disconnect the USB cable from the inline controller.

7 End the call by pressing the mobile talk button.

TIP For iPhone users, the headset battery level is displayed on the iPhone home screen. The headset

must be connected to the iPhone.

The call does not end if you remove your headset without pressing the mobile talk button. See

Advanced features.

Pair a new device

Starting from the off position, press and hold the mobile talk button until it ﬂashes red and blue.

Then follow step 3 in “Pair and make a call with your mobile phone” in the previous section.

NOTE You can only pair one device at a time.

Charge your headset

When your headset is connected to the PC the headset will automatically charge if needed.

NOTE Your new headset has enough power to make a few mobile calls before charging is needed.

The mobile talk button will be solid red when charging and off when fully charged. A full charge will

take approximately two hours. When a fully charged headset is disconnected from the PC there is

enough power to make four to ﬁve hours of mobile calls before charging is needed. Reconnect the

headset to the PC to charge the headset.

NOTE Always charge at near room temperatures; never charge battery at temperatures below 0º C

(32ºF) or above 40º C (104ºF).

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Plantronics Blackwire C720 User Manual Page 12