Smart Light Sound Machine with built-in wireless charger Manual user instructions

Smart Light Sound Machine BT 3401 Manual in English

Similar devices:
BT2301 LED Wireless Charging Bluetooth Speaker,
BT2307 LED Wireless Charging Bluetooth Speaker

General information

• Connection: Bluetooth
• Music playback from smartphones, tablets, PCs, laptops: yes
• FM radio: yes
• Constant light mode: multiple colors
• Multiple gradient light modes: yes
• Clock: yes
• Alarm: yes
• Control: buttons
• Music control: buttons, smartphone
• Wireless charging dock for smartphones: yes
• Wireless charging power: 10 W
• Memory card slot: yes, up to 32 Gb
• Input: USB; AUX
• Output: microUSB
• Speaker output power: 5 W
• Power: autonomous, 5 V DC / 500 mA
• Battery: 1500 mAh, 3.7 V
• Size: 236 ? 236 ? 80 mm
• Weight: 0.8 kg

Sunrise and sunset simulation

The sunrise simulation function in alarm mode gradually increases brightness, creating a pleasant and natural wake-up in the morning. The lamp increases brightness evenly from 0% to 100% (over 3 minutes). You can also set various nature sounds for an even more comfortable wake-up.

Using wireless charging

Place your smartphone with wireless charging capability on the charger. Smart Light Sound Machine will automatically activate wireless charging.

Control buttons

Long press – power on/off, short press – light on/off

Long press – switch mode BT/NS/FM, short press – play/pause

Short press – 15/30/60 timer, long press – Bluetooth pairing

Short press – next track, long press – volume up

Short press – previous track, long press – volume down

Alarm setup

Clock settings

Description and main functions

Power on

Press and hold the power button for two seconds to activate the device. Default lighting mode will turn on.

Bluetooth function

1. Smart Light Sound Machine BT 3401 supports Bluetooth devices with A2DP function. By default, Bluetooth mode is active when powered on, the Bluetooth indicator lights blue, and a voice prompt is given. At first startup, the system waits for pairing. In this state, pairing can be performed with your device.
2. Phone connection:
Step 1 – Open Bluetooth settings on your phone and search for new devices.
Step 2 – When BT3401 appears in the list, tap it to pair. After successful pairing, a voice prompt is played and the connection symbol is displayed.

Lighting settings are controlled via the HappyLighting app, allowing you to choose any preferred light color.

TWS function (for models equipped)

The TWS function allows two speakers to connect to one smartphone as left and right stereo channels (Bluetooth mode only). Hold the designated button on both speakers to pair them. They will automatically become left and right channels, creating true wireless stereo sound.

Ease of use

1) The BT3401 Bluetooth speaker includes 13 lighting effects.
2) Activate default warm light effect and use the light button to adjust brightness.

FM radio

To use FM radio, press and hold the “M” button to switch to FM mode.
Connect the charging cable to the Type-C port of the speaker as an antenna. No need to connect anything to the other end.
Press pause to activate automatic station search and save.
Switch saved FM stations with and buttons.

TF card/USB mode

Insert a TF card or USB drive to play music. When connected, the speaker automatically switches to USB playback mode, with a voice prompt. The BT3401 Bluetooth speaker will read audio files and start playback. Use and to control playback (short press) and volume (long press).

Clock setting

Press to enter hour/minute setup. Adjust with and .

Alarm setting

Press to enter alarm setup. Adjust hours/minutes with / . Then press again and select one of 7 alarm tones. Finally, press once more to activate the alarm (alarm symbol appears on screen).
When the alarm rings, press any button to stop it. If no button is pressed, the alarm stops automatically after 1 minute.
(!) If not deactivated, the alarm will repeat the next day. To cancel, hold until the symbol disappears.

White noise mode

Press to switch to white noise mode. Use / to choose sounds for sleep.

Safety instructions

1. Do not expose to water or use in humid areas (e.g., bathroom).
2. Do not drop or hit the device to avoid damage.
3. Turn off power when not used for a long time.