1.Description:

• TPA3118 audio power amplifier board.
• It inputs audio, it can play sound when speakers are connected.
• It is used with the Wuzhi Audio APP, you can set a variety of different functions via APP.

2.Feature:

• Support 4 audio inputs, such as Bluetooth, AUX, U disk, USB sound card,etc. You can choose a mode that is convenient for you.
• Support over temperature, over current, short circuit, anti-static protection.
• Designed with multi-function knob, 360-degree stepless tuning, with volume level indication.
• It has 10 kinds of natural sounds to quickly calm down the mood and achieve deep sleep.
• The APP has a variety of sound effects, you can customize the 10-segment sound effects to adjust arbitrarily, so that your speakers can achieve better sound effects.

3.Parameter:

• Product Name: Name:TPA3118 Audio Power Amplifier Board
• Power Amplifier Chip: Name:TPA3118
• Bluetooth Version: 5.1
• Audio Input: Bluetooth/AUX/U disk/USB sound card
• Audio Output:30W (left channel) + 30W (right channel)
• Input Voltage:DC 8V-24V
• Output Current:3A (Min)
• Adapter Speaker:10-50W, 4-8ohm
• Work Temperature:-25℃~85℃
• Work Humidity:5%~95%RH
• Size: 60x60x30mm

4.Knob Function:

• Press once: play/pause
• Press twice: Mode switch (Bluetooth/U disk/AUX)
• Long press: power on/off
• Rotation: adjust the volume

5.APP Function:

• Modify the Bluetooth name: Change the Bluetooth name of each product,and multiple products can be easily identified.
• Modify the Bluetooth password: Modify the Bluetooth connection password to prevent being hijacked.
• Adjust the volume of the prompt tone: You can adjust the volume of the prompt tone to meet the different needs of customers.
• On/Off Prompt Tone: Prompt tone can be turned on or off.
• U disk playlist function: open the U disk playlist,choose songs at will,support shaking to cut songs.

6.10 Natural Sounds:

• Sound bowl
• Streams
• Water waves
• Waves
• Thunderstorm
• Bird calls
• Bugs call
• Frog croaking
• Bonfire
• Koto

7.Bluetooth Name Modification Steps:

• Enter the new bluetooth name
• Click the setting button
• The system restarts automatically
• Cancel the pairing of the mobile phone's Bluetooth with the original Bluetooth name
• Find the new bluetooth name and re-pair

8.Bluetooth Password Setting Steps:

• Method 1:Turn on the Bluetooth password switch and use the default password 1111
• Method 2:
• 2.1).Turn on the Bluetooth password switch
• 2.2).Enter password
• 2.3).Click the Settings button
• 2.4).The system restarts automatically
• 2.5).Cancel the pairing,you will be prompted to enter the password when connecting again

9.Package:

• 1pcs TPA3118 Audio Power Amplifier Board
• 1pcs upper cover
• 1pcs lower cover
• 1pcs knob cap
• 8pcs M2*3 screws
• 4pcs M2*12 copper column
• 4pcs M2*3+3 copper column
• 1pcs screwdriver
• 1pcs DC plug