Up to 300 feet (100m) transmission radius (line of sight). Quick and easy frequency matching (GROUP and CHANNEL selection buttons). Two-color transmitter status indicator LED. Rapidly Flashing Red: "Controls Locked". Solid Red: "Battery Power Low" (less than1 hour remaining).
Flashing Red/Power Down: "Batteries Dead" (replace batteries to repower transmitter). One-touch Quick Scan frequency selection quickly locates the best open frequency (in case of interference). Up to 12 compatible systems per frequency band (region-dependent). Two-color audio status indicator LED. Red: Excessive audio levels (overload/clipping). XLR and ¼ output connectors.Operating Range: 300 ft (91 m) line of sight (actual range depends on RF signal absorption, reflection and interference). Available Frequencies: Between 524 - 865 MHz (available frequencies depend on applicable regulations in country where system used).
Audio Range: 50 - 15,000 Hz (dependent on microphone type). Transmitter RF Output Power: 10 mW, typical (varies by region). Audio Output Connector: XLR and 1/4 (6.3 mm) unbalanced. Maximum Output Level: -27 dBV (XLR, mic level), -13 dBV (1/4). Battery Life: Up to 14 hours. Dynamic Range: 100 dB A-weighted.System Distortion: 0.5% THD typical ref. +/- 38 kHz deviation, 1 k Hz tone. Operating Temperature Range: -18°C (0°F) - +50°C (122°F). BLX1: 2 AA alkaline or rechargeable batteries(included).
BLX4: 12 - 18 V DC at 150 mA, supplied by external power supply. If you can//'t install, please get professional maintenance staff to help you install. Instruction manual is NOT INCLUDE. The package will be sent to the receiving address you set. Please leaving correct address will minimize delay.If you need return, let us know the detailed. Problem and send us some pictures for confirmation.