I do not have my manual to sync my bt350 with my new phone how do I do this?

Before you use your Jabra BT350, you need to pair it with your mobile
phone.
1. Put the headset in pairing mode
• Make sure the headset is off.
• Press and hold the answer/end button until a solid blue light comes on.
2. Set your Bluetooth phone to ‘discover’ the Jabra BT350
Follow your phone’s instruction guide. This usually involves going to a
‘setup,’ ‘connect’ or ‘Bluetooth’ menu on your phone and selecting the
option to ‘discover’ or ‘add’ a Bluetooth device.* (See example from a
typical mobile phone in fig. 5)
3. Your phone will find the Jabra BT350
Your phone then asks if you want to pair with it. Accept by pressing ‘Yes’
or ‘OK’ on the phone and confirm with the passkey or PIN = 0000 (4
zeros).

or go here http://www.jabra.com/sites/Jabra/GNimages/Products/WirelessHeadset/BT350/Documents/BT350_UM_NA_EN_491.pdf

hope this helps