Xvive U7 Saxophone And Trumpet Wireless System Sound quality is paramount—and without a good microphone, the U7 would be worthless. That’s why Xvive refused to compromise in the design of the system’s ultra-high-quality supercardioid gooseneck microphone. It’s perfectly voiced for sax, trumpet and trombone—and 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. Xvive has built its name on wireless, and they understand the importance of reliable performance and top-level fidelity. The U7 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 U7 set comes with a strong and sturdy clip that attaches the transmitter and gooseneck microphone to the bell of your sax, trumpet or trombone. The gooseneck microphone 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 foam windscreen or fur 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.