This Telephone Bill Calculator is the new product in order to accommodate to the develop of the current telephone small shops, it is s innovative designed, looks beauty, used easily, and it is suitable to the telephone small shops.
2. Features and specification:
*Large LCD screen, intuitional and easy to use.
*Be designed according to the >99.99%
Damp5799342032.5dB
Interface noise level (idle)57993420380 dB (A)