Kuumakse al. 
The black MA-303DB Dual-Channel Portable Wireless PA System from MIPRO is an easy-to-use system that can be hand-carried, or mounted on a microphone stand. Delivering a loud, clear sound projection of 60W power output, this system is an ideal public address solution for small to medium crowds. This dual-channel receiver system supports a frequency band of 480 to 934 MHz and operates on 620 to 644 MHz. Scan and ACT (Automatic Channel Targeting) sync technology one-touch scans an open, interference-free receiver frequency, syncing the transmitter and receiver frequency automatically.
General
- Lightweight, compact & portable
- Powerful 60W output for loud and clear sound projection
- High efficiency class-D amplifier drives 2-way, 5″ woofer & 1″ tweeter loudspeakers
- AC and rechargeable battery power modes
- Up to 11 hours of standby time per 4 hours charge
- Built-in 2 wireless diversity receivers for reliable, extended reception range
- 16 preset scannable frequencies
- One-touch scan & ACT sync for easy & quick channel setup
- Built-in USB music player & recorder with LCD screen
- Line-input accepts an external iPod, MP3, or CD player
- Line-output for external recordings
- Microphone input for 1 wired dynamic microphone
- 4 LED indicators for accurate battery levels and charging status
- Built-in alarm siren provides emergency warnings
- Integrated microphone stand mount
- Remote control included
- Rechargeable lithium battery is included
Applications
- School classrooms & halls
- Places of worship
- Presentations, seminars and meetings
- Day-care activities; playground duty
- Indoor/outdoor gatherings
- Paging
- Shopping center & trade show presentations and promotions.
- Street performers
- Aerobic and fitness centers
- Recreational and social activities
| Power Output | 60 W maximum |
| Amplifier | Class D |
| Frequency Response | 50 Hz to 18 kHz |
| Mic Input | 1/4″ (6.3 mm) |
| Battery Type | Rechargeable lithium 14.8 V / 2.6 Ah (included) |
| Standby time | Up to 9 hours per 4 hours charge |
| Frequency Range | 480 to 934 MHz (country dependent) Operates in 620 to 644 MHz |
| Receiver Channel | UHF 16 auto-scannable channels |
| THD | ＜1% |
| Speaker | 5″ (13 cm) woofer, 1.0″ (2.5 cm) tweeter |
| Line In/Out | 1/8″ (3.5 mm) |
| Power Supply | Built-in 14.8 V/2.6 Ah rechargeable battery (MB-10), charger & 100 to 240 VAC switching power supply |
| Dimensions | 8.3 x 11 x 6.5″ (21 x 28 x 17 cm) |
| Weight | 6.2 lb (2.8 kg) |
