Passkey Entry: This process may be used involving a device with a display in addition to a device with numeric keypad entry (such as a keyboard), or two devices with numeric keypad entry. Powered on, a purple LED aligns with the Bluetooth button and also a five-phase battery indicator https://www.bluetoothspeaker.top/hot-sell-outdoor-bluetooth-speaker-with-usb-input-tf-card-function/