1. Introduction
Thank you for purchasing the INWA MZ-368 Bluetooth Speaker. This portable speaker is designed for outdoor use, featuring Bluetooth connectivity, TF card support, a built-in microphone for calls, and a display that shows time and riding speed. Its robust, waterproof design makes it an ideal companion for cycling and other outdoor activities.
2. Package Contents
- INWA MZ-368 Bluetooth Speaker
- Bicycle Handlebar Mount
- Carabiner Clip
- USB Charging Cable
- User Manual (this document)
3. Product Overview
Familiarize yourself with the speaker's components and controls.

Figure 3.1: Front view of the INWA MZ-368 Bluetooth Speaker with bicycle mount.
Controls and Display

Figure 3.2: User manual diagram showing speaker controls and display functions.
- Button 1 (Power/Mode): Press and hold to power on/off. Short press to switch between modes (Bluetooth, TF Card).
- Button 2 (Volume Up / Next Track): Long press to increase volume. Short press to skip to the next track.
- Button 3 (Play/Pause / Pairing / Answer Call): Short press to play/pause music. In Bluetooth mode, long press to enter pairing mode. Short press to answer or end a phone call.
- Button 4 (Volume Down / Previous Track): Long press to decrease volume. Short press to go to the previous track.
- Display: Shows current mode (FM, TF, IN), battery level, and status (time or speed).
4. Setup
4.1 Charging the Speaker
Before first use, fully charge the speaker.
- Connect the USB charging cable to the speaker's charging port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The display will show a charging indicator (red light on).
- The charging indicator will turn off when the battery is fully charged.
4.2 Attaching the Carabiner
For portable use, attach the included carabiner clip to the loop on the speaker.

Figure 4.1: Speaker attached to a backpack using the carabiner clip.
4.3 Installing the Bicycle Mount
To mount the speaker on your bicycle handlebar:
- Attach the speaker to the bicycle mount by sliding it into the groove until it clicks securely.
- Open the clamp of the bicycle mount.
- Position the mount on your bicycle handlebar at the desired location.
- Tighten the screw on the mount to secure it firmly to the handlebar. Ensure the speaker is stable and does not obstruct your view or controls.
Video 4.1: Demonstration of speaker features, including bicycle mount installation.
5. Operating Instructions
5.1 Power On/Off
Press and hold the Power/Mode button (Button 1) for 2 seconds to turn the speaker on or off. A voice prompt will indicate the power status.
5.2 Bluetooth Pairing
- Turn on the speaker. It will automatically enter Bluetooth pairing mode (voice prompt: "Bluetooth Mode").
- On your mobile device, enable Bluetooth and search for available devices.
- Select "INWA MZ-368" from the list to connect. A voice prompt will confirm successful pairing.
- If already paired, the speaker will automatically connect to the last paired device when turned on.
5.3 Music Playback
- Play/Pause: Short press the Play/Pause button (Button 3).
- Next Track: Short press the Volume Up button (Button 2).
- Previous Track: Short press the Volume Down button (Button 4).
- Volume Up: Long press the Volume Up button (Button 2).
- Volume Down: Long press the Volume Down button (Button 4).
5.4 TF Card Mode
Insert a TF (microSD) card loaded with MP3 audio files into the TF card slot. The speaker will automatically switch to TF Card mode and begin playing music. Use the same controls as for Bluetooth music playback.
5.5 Call Handling
When connected via Bluetooth, the speaker can be used for hands-free calls.
- Answer/End Call: Short press the Play/Pause button (Button 3) when a call comes in or during a call.
- Reject Call: Long press the Play/Pause button (Button 3) when a call comes in.
5.6 Display Functions
The speaker's display can show time, speed, and battery status.
- Time Setting: Press the Power/Mode button (Button 1) to cycle through display modes until time is shown. Press and hold Button 1 to enter time setting mode. Use Volume Up/Down buttons (Buttons 2 & 4) to adjust hours and minutes. Short press Button 1 to switch between hour and minute adjustment, and long press to confirm and exit. The default is a 24-hour system.
- Speed Display: The speaker can display your riding speed. Press the Power/Mode button (Button 1) to cycle through display modes until speed is shown. Press and hold Button 1 to enter speed unit setting mode. Use Volume Up/Down buttons (Buttons 2 & 4) to switch between KM/H and MPH. Long press Button 1 to confirm and exit.
- Battery Indication: The display shows a battery icon with segments indicating the charge level (e.g., 100%, 75%, 50%, 25%).
6. Maintenance
6.1 Cleaning
Wipe the speaker with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
6.2 Waterproof Care
The INWA MZ-368 speaker is rated IPX65 waterproof, meaning it is protected against low-pressure water jets from any direction. While it can withstand rain and splashes, do not submerge it in water for extended periods.

Figure 6.1: Speaker undergoing a water spray test, demonstrating its IPX65 waterproof feature.
7. 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 device | Ensure speaker is in Bluetooth mode and pairing; Turn on device Bluetooth; Move device closer to speaker (within 10m). |
| No sound | Volume too low; Paused music; Incorrect mode | Increase volume on speaker and device; Press play; Switch to correct mode (Bluetooth/TF Card). |
| TF card not playing | Card not inserted correctly; Unsupported file format; Corrupted card | Reinsert TF card; Ensure files are MP3; Try a different TF card. |
8. Specifications
| Feature | Specification |
|---|---|
| Brand | INWA |
| Model | MZ-368 |
| Power Output | 5W |
| Battery Capacity | 800mAh |
| Playtime | Up to 10 hours |
| Waterproof Rating | IPX65 |
| Bluetooth Version | 5.0 |
| Communication | Bluetooth, AUX (via charging port, adapter not included) |
| Audio Crossover | Full-Range |
| Frequency Range | 100Hz-20KHz |
| Display Screen | Yes (Time, Speed, Battery) |
| Built-in Microphone | Yes |
| Support Memory Card | Yes (TF Card) |
| Control | Volume control, Track control, Play/Pause, Call Answer |
| Cabinet Material | Plastic |
| Dimensions (approx.) | 80mm diameter |
9. User Tips
- For potentially better audio quality, some users find playing music directly from a TF card preferable to Bluetooth.
- Be mindful when adjusting volume or skipping tracks: a short press on the volume buttons will skip the song, while a long press adjusts the volume.
- The speaker's volume is generally sufficient for outdoor activities, even when riding a motorcycle.
- The speed display function is a convenient feature for cyclists, allowing you to monitor your speed directly on the speaker.
- The speaker does not include an FM radio function.
10. Warranty and Support
For any product-related inquiries, technical support, or warranty claims, please contact your seller directly. Keep your purchase receipt as proof of purchase.