1. Introduction
Thank you for purchasing the Sarevile KH-23 Bluetooth Headset. This manual provides essential information for setting up, operating, and maintaining your headset. Please read it carefully to ensure proper use and to maximize the product's performance and lifespan.
2. Product Overview
The Sarevile KH-23 is a V5.2 wireless Bluetooth headset designed for clear communication in various environments. It features an AI noise-canceling microphone, comfortable on-ear design, and multi-device connectivity.
Figure 1: Headset Components and Controls
3. What's in the Box
- Sarevile KH-23 Bluetooth Headset
- USB Charging Cable
- USB Bluetooth Dongle (for models with dongle)
- User Manual (this document)
Figure 2: Headset and USB Dongle
4. Controls and Functions
The headset features intuitive controls located on the earcup for easy access:
- Multi-function Button (MFB): Power On/Off, Play/Pause music, Answer/End calls, Redial last number, Activate voice assistant.
- Volume + / Next Track Button: Increase volume, Skip to next music track.
- Volume - / Previous Track Button: Decrease volume, Go to previous music track.
- Microphone Mute Button: Mute/Unmute the microphone during calls.
- LED Indicator: Displays power, pairing, and connection status.
- Charging Port: USB port for charging the headset.
5. Setup and Pairing
5.1 Initial Charging
Before first use, fully charge the headset. Connect the USB charging cable to the headset's charging port and a USB power source. The LED indicator will show charging status and turn off when fully charged.
5.2 Power On/Off
- Power On: Press and hold the MFB for approximately 3 seconds until the LED indicator flashes.
- Power Off: Press and hold the MFB for approximately 5 seconds until the LED indicator turns off.
5.3 Bluetooth Pairing (with Phone/Tablet)
- Ensure the headset is powered off.
- Press and hold the MFB for 5-7 seconds until the LED indicator flashes red and blue alternately, indicating pairing mode.
- On your device (phone/tablet), enable Bluetooth and search for available devices.
- Select "KH-23" from the list of found devices to connect.
- Once connected, the LED indicator will flash blue slowly, and a voice prompt will confirm the connection.
Figure 3: Bluetooth Pairing Process
5.4 Connecting with USB Dongle (for PC)
For computers without built-in Bluetooth, use the included USB dongle:
- Plug the USB dongle into an available USB port on your computer.
- Power on the Sarevile KH-23 headset.
- The headset and dongle will automatically pair. The LED indicator on the headset will flash blue slowly once connected.
- Ensure the headset is selected as the audio input and output device in your computer's sound settings.
5.5 Dual Device Connection
The Sarevile KH-23 headset supports simultaneous connection to two Bluetooth devices:
- Pair the headset with the first device (e.g., phone) as described in section 5.3.
- Disable Bluetooth on the first device. The headset will re-enter pairing mode.
- Pair the headset with the second device (e.g., tablet) as described in section 5.3.
- Re-enable Bluetooth on the first device. The headset should automatically connect to both devices.
- The headset will intelligently switch between devices for calls and audio playback.
Figure 4: Dual Device Connectivity
6. Wearing the Headset
For optimal comfort and microphone performance, adjust the headset as follows:
- Headband Adjustment: Extend or retract the headband to fit your head comfortably.
- Earcup Placement: Position the earcup over one ear, ensuring the soft earpad rests gently.
- Microphone Positioning: Rotate the boom microphone 270 degrees to position it on either the left or right side. Adjust the microphone arm so the microphone is approximately 1-2 inches from your mouth for clear voice pickup.
- Anti-Slip Pad: The anti-slip pad on the headband helps secure the headset in place.
Figure 5: Wearing and Microphone Adjustment
Figure 6: Comfort and Design Features
7. Operating Instructions
7.1 Call Management
- Answer Call: Press the MFB once.
- End Call: Press the MFB once during a call.
- Reject Call: Press and hold the MFB for 2 seconds.
- Redial Last Number: Double-click the MFB.
- Mute/Unmute Microphone: Press the Microphone Mute Button once during a call.
7.2 Audio Playback
- Play/Pause: Press the MFB once.
- Volume Up: Press the Volume + button.
- Volume Down: Press the Volume - button.
- Next Track: Press and hold the Volume + button for 2 seconds.
- Previous Track: Press and hold the Volume - button for 2 seconds.
7.3 Voice Assistant
To activate your device's voice assistant (e.g., Siri), press the MFB twice quickly when not on a call.
7.4 AI Noise Canceling Microphone
The integrated AI noise-canceling microphone is designed to reduce background noise, ensuring clear voice transmission during calls, even in noisy environments.
Figure 7: AI Noise Canceling in Action
8. Battery and Charging
- Charging Time: Approximately 1.5 hours for a full charge.
- Talk Time: Up to 35 hours.
- Music Playback Time: Up to 60 hours (at 70% volume).
- Battery Indicator: The headset's battery level may be displayed on your connected device (if supported).
Figure 8: Battery Life and Range Overview
9. Maintenance
- Cleaning: Use a soft, dry cloth to clean the headset. Do not use harsh chemicals or abrasive materials.
- Storage: Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Water: The headset is not waterproof. Avoid exposure to liquids.
- Charging: Use only the provided charging cable or a certified equivalent.
10. Troubleshooting
| Problem | Solution |
|---|---|
| Headset does not power on. | Ensure the headset is charged. Press and hold the MFB for 3 seconds. |
| Cannot pair with device. | Ensure the headset is in pairing mode (LED flashes red/blue). Disable and re-enable Bluetooth on your device. Ensure the headset is within 30 feet of your device. |
| No sound or poor sound quality. | Check volume levels on both the headset and your device. Ensure the headset is properly connected. Try re-pairing the headset. |
| Microphone not working. | Ensure the microphone is not muted. Check microphone settings on your connected device. |
| USB dongle not connecting. | Ensure the dongle is fully inserted into a working USB port. Power cycle the headset. Check computer's sound settings. |
11. Specifications
| Feature | Detail |
|---|---|
| Model | KH-23 |
| Bluetooth Version | 5.2 |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Range | Up to 30 feet (10 meters) |
| Microphone | AI Noise Canceling, Rotatable Boom Mic |
| Ear Placement | On Ear |
| Battery Life (Talk Time) | Up to 35 hours |
| Battery Life (Music Time) | Up to 60 hours |
| Charging Time | Approx. 1.5 hours |
| Dimensions | 7.17 x 7.01 x 2.76 inches |
| Item Weight | 9.1 ounces (0.26 kg) |
| Included Components | USB Charging Cable, USB Dongle (for models with dongle) |
12. Official Product Video
Watch this official product video for a visual guide on the Sarevile KH-23 Bluetooth Headset's features and usage.
Video: Sarevile Trucker Bluetooth Headset Overview
13. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact Sarevile customer service through the retailer where the product was purchased. Keep your purchase receipt for warranty claims.
