When use the Microsoft's　mail client(eg.outlook.etc) to receive E-Mail, and your MSN or Skype receive new message,the Webmail Notifier will have lighting and ardio remind.And could express different states though different light colors. And some free mail box which  support POP3 protocol could check directly and do not need the mail client.
1）. USB power supply
2）. Support mail client of Outlook Express,Office Outlook,Windows Mail and Windows Lives Mail.

3）. Support message reminding of MSN and Skype.

4）. Support the Hotmail by Windows Live Mail.

5）. Gmail and Yahoo Mail also could suppot through the mail client which enumerated in the point 2. And the Yahoo Mail could support through POP3,but need to pay to, and you can refer to the official website of yahho.

6）. Support the E-Mail client which support pop3 protocol direct check.( To the mailbox for free,like 163,126,sohu,sina and so on.)  
7）. Support new email remind,could show hao many new mail in your mail box.
8）. Support voice remind,and you could use custom remind voice.

9）. Support the Operate System of Windows 2000,Windows XP and Windows Vista.
packing measurements:
QTY/Carton:150PCS   G.W./Carton(KG):16KG  Unit N.W KG:0.1KG      
Size for Carton:58.5*42.5*41CM     PACKING PCS/skinpacking ：1pcs