Roam freely and connect with your audience while retaining the highest quality amplified sound! The Xvive U9 combines a high-end gooseneck microphone with wireless transmission, so you can play your acoustic violin anywhere at any volume, cable-free! The U9's microphone is perfectly voiced for violin and viola. With a max SPL of 142 dB and a sensitivity of -45 dB, you’ll hear the natural sound of your instrument wherever you go. The U9 system uses the 2.4 GHz band, has 6 channels to ensure you always have options if you encounter interference, and the wireless range is up to 90 feet! The U9 set comes with a strong and sturdy clip that attaches the transmitter and gooseneck microphone to the body of your violin or viola. It will fit on on instrument bodies that are between 30 mm and 40 mm thick (1.18” – 1.57”) The gooseneck microphoned is designed to be adjustable, allowing you to position it as desired to get the sound that best captures the tone of your instrument. Since with a wireless unit you will be moving around more as you perform, sometimes you may want to attach the included windscreen or windshield to filter out wind noise! Charge the transmitter and receiver at the same time using the dual USB-C cable and any 5V 2A USB power supply. Charging for two and a half hours gets you 5 hours of play time; 1.25 hours gets you 2 hours of play time, and 30 min of charging gets you 1 hour. The U9 set includes: Microphone Transmitter Receiver Dual USB-C Charging Cable Clip Windscreen Windshield Manual Microphone Specifications TYPE Supercardioid DIMENSIONS 20 mm x 28 mm x 190 mm WEIGHT 35 g OUTPUT 1/8” balanced male TRS (Tip = +3.3V, Ring = -3.3V, Sleeve = ground) SENSITIVITY -45 dB MAX. SPL 142 dB Wireless System Specifications TUNING BANDWIDTH 2400 – 2483.5 MHz WORKING RANGE 90 ft (indoors) FREQUENCY RESPONSE 20 Hz – 20 kHz (-3dB) DYNAMIC RANGE 108 dB SIGNAL-TO-NOISE RATIO 108 dB RF SENSITIVITY -88 dBm TOTAL HARMONIC DISTORTION 0.2% RF OUTPUT POWER 10 mW E.I.R.P. max OPERATING TEMPERATURE RANGE 0°C to 45°C CHANNEL COUNT 6 CHARGING VOLTAGE / CURRENT 5V / 2A BIT DEPTH / SAMPLE RATE 24-bit / 48 kHz LATENCY less than 5 ms Transmitter Specifications DIMENSIONS 40 mm x 29 mm x 50 mm WEIGHT 35 g AUDIO INPUT CONNECTOR 1/8” balanced TRS female MAXIMUM INPUT LEVEL 3.7 Vp-p PHANTOM POWER ± 3.3V USB TYPE USB Type-C ANTENNA IMPEDANCE 50 Ω ANTENNA TYPE 1/4 wave sleeve dipole, non-removable NUMBER OF ANTENNAS 1 Receiver Specifications DIMENSIONS 31 mm x 29 mm x 98 mm WEIGHT 92 g OUTPUT IMPEDANCE 470 Ω (1 kHz) OUTPUT CONNECTOR XLR balanced male MAXIMUM OUTPUT LEVEL 3.6 Vp-p USB TYPE USB Type-C ANTENNA IMPEDANCE 50 Ω ANTENNA TYPE 1/4 wave sleeve dipole, non-removable NUMBER OF ANTENNAS 2