Functions:

The character of the MP-3300 Jammer is that four outputs matched with trimmers and switches respectively work as output power adjustment. Except adjusting output power, it can also close its transmitting frequency output port.
Technical indicators:

The testing for adjusting jammer with power
Four working frequencies:
1. CDMA: 868MHz-- 883MHz
2. GSM: 928MHz-- 968MHz
3. DCS: 1802MHz--1895MHz
4. PHS: 1889MHz--1930MHz