Onyx Studio4Rear Panel Connectionsthe connections on the rear panel are:1. uSB port (For service use)2. power dc inputUSB Portthe uSB port is used to upgrade software as service purpose.Power DC Inputconnect the ac power adapter to this port to charge the built-in battery.LED Indicationsthe leds present on the top panel indicates the status of the speaker unit.Refer to the table below to get a fair idea on the speaker led indications.OperationSwitching ON and OFFthe power button on the top panel of the speaker allows you to set your speaker to anyof the following power modes:• Operational mode – White constant led illumination• Off mode – no illuminationto change the power mode:• long press: Off mode – to enter operational mode• long press: Operational mode – to enter off modeAdjusting Volumethe volume buttons on the top panel allow you to increase or decrease volume. adjustvolume using the Volume up (“+”) and Volume down (“–”) buttons located on top ofthe unit.• Short press - Increase/decrease volume by 1 step• press and hold - Increase/ decrease volume continuously (1 step per 0.2second)Connecting Bluetooth & Playing Music through Bluetooth1. press the power button. the led will illuminate white.the speaker enters pairing mode when it is switched on.2. If the speaker has been paired with any source before, pressand hold the Bluetooth button for at least 2.5 seconds.3. perform a new device search on your Bluetooth-capable device.4. Select HK Onyx Studio on the device’s pair-ing list and enter pasword as 0000.the device will be paired to hK Onyx Studio automatically. If pairing issuccessful, the Bluetooth led will change to white.5. control playback from your Bluetooth-capable device.LED State Indicationpower led White, constant Operational modeWhite, Slow Flash Battery chargingWhite, Quick Flash low batteryWhite, Flash twice Factory settings restoredOFF OFF modeBluetooth led White, constant Bluetooth connectedWhite, Slow Flash no Bluetooth device connectedOperation110/220 volt power source