How long does the built-in battery last?

■Speaker

With a fully charged battery and nothing connected to the USB port, the speaker can be used for 8 hours continuously under normal playback conditions without distortion caused by excessive volume.

The time may vary depending on conditions of use such as volume level, music played, ambient temperature, etc.

■Transmitter

With a fully charged battery and the input limit indicator's red light off, the transmitter can be used for 8 hours continuously. The time may vary depending on conditions of use such as volume level, playback music, and ambient temperature.