【From the Manufacturer's Website】 U2 Digital Wireless System High-quality sound, lightweight, and compact design. Can be used simultaneously with multiple channels. *1 ------------------------------------------------- Simply plug the receiver into your amplifier and the transmitter into the jack of your guitar or bass. Super easy wireless! Includes 1 receiver and 1 transmitter. *1 When using multiple units, to avoid interference, maintain a distance of 1.5m to 2m or more between your transmitter and the other person's receiver. * Noise may occur when using "U2" with some battery-powered pre-amp-equipped instruments. This noise is caused by the proximity of the "U2" to the built-in pre-amp and battery, and may prevent normal use depending on the instrument's construction. ------------------------------------------------- ■Controls: 24bit/48kHz uncompressed digital transmission ■Maximum transmission distance: Approximately 30m * The actual transmission distance varies depending on the environment, such as radio wave reflection, interference, and absorption. ■Operating time: Approximately 5 hours ■Battery: Lithium-ion polymer battery Charging time: Approximately 1.5 hours ■Latency: Less than 6ms ■Frequency response: 20〜20kHz, +1dB/-3dB ■Operating frequency band: 2.4GHz ISM worldwide ■Operating environment temperature: -10〜50℃ ■Other: USB charging cable included ■Weight: Approximately 42g (transmitter) / Approximately 39g (receiver)