Verykool s400 - Manual (Page 7)

- 2 -
Key Description
Back Key
In the menu mode, press the key to go back to
upper menu.
Volume Key
To adjust incoming call ringtone volume.
During a call, while playing music, video, or
listening to radio, press the keys to adjust volume.
Start to Use
Install Memory Card, SIM Card and Battery
When you apply for a network, you will get a plug-in SIM card. SIM
(Subscriber Identity Module) card that contains the phone number
and service projects, and can be used to store phone numbers and
personal information.