Sphere SP-1 by Quick starting guide
Functions: Buttons: Bluetooth 2.
Overview of voice alerts: „Bluetooth mode. Pair the device.“ - The unit is in Bluetooth mode and is ready for pairing. „Paired“ - it has been successful paired with a Bluetooth device. „Radio“ - the device is in FM radio mode. „Media mode“ - The unit is in playback mode, ready to play audio recordings from the micro SD card or micro USB device connected via the 3.5mm jack. „SD card“ - the equipment is ready to play songs from a micro SD card. „Low battery“ - low battery warning.
Using handsfree: To use this feature, you must have the Sphere SP-1 paired via Bluetooth with a smartphone. Calls can be accepted / rejected in the standard way on the phone or accepted by pressing the „Handsfree“ button and rejected by holding the „Handsfree“ button. Charging: The speaker can be charged using the included micro USB cable from any charger with a USB output or from any computer equipped with a USB output. Charge the device only under supervision.