64MB 
128MB
•
AAA 
•
USB 
AAA 
•
7 
•
•
OFF/CHARGE 
PLAYBACK/ DOWNLOAD 
PC 
Start ➔Programs | ➔Philips ➔Key Ring Wearable Audio player | |
(xxxMB)➔Format | Key Ring Format | Quick |
Format | Start |
|
Flash 
1
OFF/CHARGE 
2
USB 
USB 
USB 
23