Introduction
Thank you for purchasing the Dprofy H4P-K 20W Bluetooth Speaker. This manual provides important information regarding the setup, operation, and maintenance of your speaker. Please read it thoroughly before using the product to ensure optimal performance and longevity.
The Dprofy H4P-K is a portable Bluetooth speaker designed to deliver high-quality audio with its dual 10W drivers and bass radiator. It features a long-lasting 24-hour battery, built-in microphone for hands-free calls, and supports True Wireless Stereo pairing for an enhanced audio experience. Connectivity options include Bluetooth 5.3, AUX input, and a Micro SD card slot.
Package Contents
Please check the box for the following items:
- Dprofy H4P-K Bluetooth Speaker
- 3.5mm Audio Cable (AUX in Cable)
- Micro USB Charging Cable
- User Manual (this document)
Product Overview
Familiarize yourself with the speaker's components and controls.

Figure 1: Top-down view of the Dprofy H4P-K Bluetooth Speaker, highlighting the control panel and speaker grille.

Figure 2: Rear view of the Dprofy H4P-K Bluetooth Speaker, illustrating the AUX input, Micro SD card slot, and Micro USB charging port. A smartphone and tablet are shown nearby, indicating connectivity options.
Control Panel Layout
- Power Button: Press and hold to turn the speaker ON/OFF. Short press to play/pause music.
- Mode Button (M): Short press to switch between Bluetooth, AUX, and Micro SD card modes.
- Volume Down (-): Short press to decrease volume. Press and hold for previous track.
- Volume Up (+): Short press to increase volume. Press and hold for next track.
- Call Button: Short press to answer/end calls. Press and hold to reject calls. Double press to redial last number.
Setup
Charging the Speaker
Before first use, fully charge the speaker. Connect the Micro USB charging cable to the speaker's charging port and the other end to a USB power adapter (5V/1A recommended) or a computer's USB port. The LED indicator will show charging status and turn off when fully charged.
Powering On/Off
Press and hold the Power Button for approximately 3 seconds until you hear an audible prompt, indicating the speaker is turning on or off.
Operating Instructions
Bluetooth Pairing
- Ensure the speaker is powered on and in Bluetooth mode. If not, short press the Mode Button (M) until you hear the Bluetooth pairing prompt. The LED indicator will flash blue, indicating it's ready for pairing.
- On your device (smartphone, tablet, laptop), enable Bluetooth and search for available devices.
- Select "Dprofy H4P-K" from the list of devices.
- Once successfully paired, the speaker will provide an audible confirmation, and the LED indicator will turn solid blue.
- The speaker will automatically reconnect to the last paired device when powered on, if the device's Bluetooth is active and within range.
True Wireless Stereo (TWS) Pairing
To achieve a true stereo sound experience, you can pair two Dprofy H4P-K speakers together.

Figure 3: Illustration of two Dprofy H4P-K speakers configured for True Wireless Stereo (TWS) pairing, providing a wider soundstage.
- Ensure both Dprofy H4P-K speakers are powered on and not connected to any Bluetooth device.
- On one speaker (this will be the primary speaker), double-press the Mode Button (M). It will enter TWS pairing mode.
- The primary speaker will automatically search for the secondary speaker. Once connected, you will hear an audible confirmation.
- Now, connect your device to the primary speaker via Bluetooth as described in the "Bluetooth Pairing" section. Both speakers will play audio in stereo.
Note: TWS pairing only works with two identical Dprofy H4P-K speakers.
AUX Input Mode
Use the 3.5mm audio cable to connect the speaker to devices without Bluetooth capability.
- Connect one end of the 3.5mm audio cable to the AUX port on the speaker.
- Connect the other end to the audio output jack of your device (e.g., MP3 player, computer).
- The speaker will automatically switch to AUX mode, or you may need to short press the Mode Button (M) to select AUX mode.
Micro SD Card Playback
The speaker supports audio playback directly from a Micro SD card.
- Insert a Micro SD card (with audio files) into the Micro SD card slot on the speaker. Ensure it is inserted correctly (some users report needing to insert it upside-down and push firmly).
- The speaker will automatically switch to Micro SD card mode, or you may need to short press the Mode Button (M) to select Micro SD mode.
- Use the volume/track control buttons to manage playback.
Hands-Free Calling
When connected via Bluetooth to a smartphone, the speaker can be used for hands-free calls.
- Answer/End Call: Short press the Call Button.
- Reject Call: Press and hold the Call Button.
- Redial Last Number: Double press the Call Button.
Maintenance and Care
- Keep the speaker away from water, moisture, and extreme temperatures.
- Clean the speaker with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Avoid dropping the speaker or subjecting it to strong impacts.
- When not in use for extended periods, charge the speaker at least once every three months to preserve battery life.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not turn on. | Low battery. | Charge the speaker fully. |
| Cannot pair via Bluetooth. | Speaker not in pairing mode; device Bluetooth off; too far from speaker. | Ensure speaker is in Bluetooth pairing mode (flashing blue LED). Turn on Bluetooth on your device. Move device closer to speaker (within 10 meters/33 feet). |
| No sound. | Volume too low; incorrect mode; device not playing. | Increase speaker and device volume. Ensure correct mode (Bluetooth, AUX, SD). Check if music is playing on your device. |
| Sound distortion. | Volume too high; low battery. | Decrease volume. Charge the speaker. |
| Micro SD card not recognized. | Incorrect insertion; unsupported format. | Re-insert the Micro SD card, ensuring correct orientation and firm insertion. Ensure audio files are in a supported format (e.g., MP3). |
Specifications
| Model Name | H4P-K |
| Speaker Output Power | 20 Watts (Dual 10W Drivers) |
| Connectivity Technology | Bluetooth 5.3 |
| Audio Output Mode | Stereo |
| Battery | 3600mAh Lithium-ion (24 hours playtime at 2/3 volume) |
| Input Voltage | 5 Volts |
| Product Dimensions | 19.81 x 6.1 x 8.13 cm (7.8 x 2.4 x 3.2 inches) |
| Weight | 530.7 g (1.17 lbs) |
| Material | Metal |
| Special Features | Built-in Microphone, TF Card Support, True Wireless Stereo (TWS) |

Figure 4: Dimensions of the Dprofy H4P-K Bluetooth Speaker.
Warranty and Support
Dprofy products are designed and manufactured to the highest quality standards. For warranty information and customer support, please refer to the warranty card included in your package or visit the official Dprofy website. Please retain your proof of purchase for any warranty claims.
For further assistance or technical support, please contact Dprofy customer service through the contact information provided on the product packaging or the official brand store on Amazon.
Dprofy Store Link: Visit the Dprofy Store on Amazon





