1. International Standard Circuit System
2. FSK and DTMF caller ID
3. Phone number and time check, comeing number display
4. Thunder proof/Burglar proof
5. Volume adjustment
6. CE, FCC and ISO9001 approved
7. OEM/ODM are welcomed
8. Material>>Inward Oak
9. Amazing as gifts, home ornaments, business presents, hotel accessories, etc
10. Color box package inside and carton package outside
11. Stable quality and nice timbre
12. Inward oak
13. Never change color or crack
14. High of collecting and visual value.