DescriptionShure BLX® Wireless Systems combine professional-quality sound with simple setup and an intuitive interface for legendary audio performance right out of the box. Precision-built and available in a variety of configurations, it’s the most accessible way to own the stage.The BLX14/SM31 Wireless Headset System includes BLX4 wireless receiver, BLX1 bodypack transmitter, SM31 fitness headset microphone, power supply, clothing clip, windscreens, and user guide.The SM31FH cardioid condenser microphone with analogue transmission features moisture-repelling construction for true performance in humid applications where corrosion damage is common.Included Accessories: 1 – PS24 Power Supply 1 – Clothing clip 1 – Windscreen 1 – Carrying CaseSpecificatonsSYSTEM Working Range: 91 m (300 ft) Line of Sight Audio Frequency Response: 50 to 15,000 Hz* Total Harmonic Distortion: Ref. /-33 kHz deviation with 1 kHz tone; 0.5%, typical Dynamic Range: 100 dB, A-weighted, typical *Note: Dependent on microphone typeBLX1 Audio Input LeveL (mind/max): -16 dBV to 10 dBV(0 dB) Gain Adjustment Range: 26 dB Input Impedance: 1 MΩ RF Transmitter Output: 10 mW, typical Dimensions (H x W x D): 4.33 in. x 2.52 in. x 0.83 in. (110 mm x 64 mm x 21 mm) Weight: 2.6 oz. (75 g), without batteries Housing: Molded ABS Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline Battery Life: up to 14 hours (alkaline) Audio Input Level (0dB) -20 dBV maximum (-10dB)-10 dBV maximum Gain Adjustment Range: 10 dB RF Transmitter Output: 10 mW, typical Dimensions: 8.82 in. x 2.09 in. (224 mm x 53 mm) L x Dia. Weight: 7.7 oz. (218 g) without batteries Housing: Molded ABS Power Requirements: 2 LR6 AA batteries, 1.5 V, alkaline Battery Life: up to 14 hours (alkaline)BLX4 Output Impedance XLR connector: 200 Ω 6.35 mm (1/4″) connector: 50 Ω Audio Output Level: Ref. 33 kHz deviation with 1 kHz tone XLR connector: 27 dBV (into 100 kΩ load) 6.35 mm (1/4″) connector: 13 dBV (into 100 kΩ load) RF Sensitivity: -105 dBm for 12 dB SINAD, typical Image Rejection: > 50 dB, typical Dimensions (H x W x D): 1.57 in. x 7.40 in. x 4.06in. (40 mm x 188 mm x 103 mm) Weight: 48.5 oz. (241 g) Housing: Molded ABS Power Requirements: 1215 V DC @ 160 mA, supplied by external power supply (tip positive)
