It is a DIY Amplifier/Bluetooth Amplifier/Audio Amplifier, Power input: DC 12V-24V 3A--4A, Bluetooth standard: Bluetooth 4.0+EDR, Speaker output power: 30W*2, Suitable for smart phone/notebook product with Bluetooth function.

• Amplifier type: AV amplifier
• Channel: 2 channel
• Weight: 0.154kg
• Resistance: 4ohm
• Dimension: 78*70*38cm
• Input voltage: 12V~24V
• Input current: at least 2.5A
• Bluetooth connecting distance: within 10 meter
• Bluetooth standard: Bluetooth 4.0+EDR
• Headset power: 105mW*2
• Speaker output power: 30W*2
• Power input: DC 12V-24V 3A--4A

• Power on the amplifier
• Use smart phone/notebook product with Bluetooth function
• Searching "F900 Music Play" Bluetooth, click connecting, if hint PIN pls enter 0000, after connecting then can play wireless music
• Bluetooth indicator condition, blue light twinkle, means Bluetooth not connect, if indicator light for long period then twinkle means connect succeed

• Connect the speakers, please use 12V power supply; Connect the headset, please use 5V power supply; Recommend speaker power is 10W to 120W.
• Bluetooth not connect succeed: power off it and restart again
• Amplifier no sound: check whether volume normal, confirm insert DC 12V-24V power
• Aux audio input no sound: only can use 3.5mm audio signal cable
• IBM(Lenovo) PC cannot connect the Bluetooth with this amplifier, need to download the bluetooth driver then connect Bluetooth device, click>> Control Panel, find the "Sound" option, setting Bluetooth as the default device.

• 1 x  bluetooth amplifier
• 1 x audio signal cable(1.2m length)
• 1 x AV audio signal cable(1.5m length
• 1 x US-type power supply