AV company service hire

Hi there, My name is Petra Martínková and I represent an Events Management Company based in Prague in Czech Republic. I am looking for an AV company, which will provide us AV equipment and AV service for our conference in Berlin. Conference is usually 2 days/10 hours per day. We require following equipmen: 4x Clip-on microphone 2x Hand-held microphone 2x Comfort monitor for speakers 2x Loud spekers 1x Countdown timer 1x Technician Budget: 1200 EUR