Controls within reach.
View the side buttons and the clip-on body in detail.
QRSC AUDIO / K91
K91
Your voice.
In control.
AI offline voice control and dual-microphone ENC meet a retractable clip-on design. A digital display and contrasting finishes complete the K91.
Explore colours ↓
AIOffline voice control
Dual-micENC for calls
70 hMusic at 80% volume
AI OFFLINE VOICE CONTROL
Your voice.
No internet needed.
Use AI offline voice control without an internet connection for the voice-control function.
DUAL-MICROPHONE ENC
Keep the conversation going.
The BT8932H chipset supports dual-microphone ENC call noise reduction, helping reduce background noise during calls.
CLIP-ON & RETRACTABLE
Within reach.
Ready to answer.
Keep the compact body clipped to your clothing and extend the earpiece when needed. The display and separate side controls are easy to find.
BATTERY & CHARGING
Built for longer
listening sessions.
The K91 pairs a 400 mAh battery with charging that reaches approximately 80% in 30 minutes.
70hMusic at 80% volume
60hMusic at maximum volume
40hApproximate talk time
Playback and talk-time figures are approximate and depend on usage and environment. A full charge takes approximately 90 minutes. Figures follow the product specification sheet.
Black · Three-quarter view
CLIP-ON & RETRACTABLE
Find your finish.
A clip-on Bluetooth earphone with AI offline voice control, dual-microphone ENC, a retractable cable and a digital battery display. Compare the available colours and frame finishes.
Voice controlAI offline voice control
Call noise reductionDual-mic ENC
Battery400 mAh
Music playbackUp to 70 h at 80% volume
Product appearance and finishes may vary by configuration.
A CLOSER LOOK
Explore the details.
A cable that stays with you.
The retractable design keeps the earpiece connected to the clip-on body.
A clear front display.
Compare the digital display and contrasting frame finish.
CHOOSE YOUR FINISH
5 finishes. One K91.
UNDERSTAND THE DETAILS
K91, in detail.
See how offline voice control, ENC calling and the larger battery support the retractable clip-on design.
Offline voice control.
The K91 supports AI offline voice control: the voice-control function does not require an internet connection. The phone connection and any online service used by your phone still have their own requirements.
- Use the command instructions supplied for the K91 configuration.
- Keep the phone paired for the listening and calling functions you intend to control.
Two microphones for call noise reduction.
Dual-microphone ENC helps reduce background noise captured during calls. The BT8932H platform supports this call function alongside the retractable earphone layout.
- ENC processes microphone audio during calls.
- A digital display and physical side controls keep everyday operation visible and accessible.
Long listening, with clear test conditions.
The 400 mAh battery supports approximately 70 hours of music at 80% volume or 60 hours at maximum volume. Approximate talk time is 40 hours.
- Approx. 30 minutes to 80% charge.
- Approx. 90 minutes to full charge; actual endurance varies with use.
Compare colour and frame combinations.
The finish gallery includes black, black with a grey frame, black with a silver frame, silver and orange. Multiple views show the front, cable and side surfaces so you can compare more than the colour alone.
- The earpiece stays connected through its retractable cable.
- Select the finish before using the colour-specific enquiry button.
PRODUCT INFORMATION
K91 specifications
Standard configuration
- Bluetooth version
- 6.0
- Chipset
- BT8932H
- Call noise reduction
- Dual-microphone ENC
- Earphone battery
- 400 mAh
- Charging input
- DC 5 V
- Fast charging
- Approx. 80% in 30 min
- Earphone charging time
- Approx. 90 min
- Music playback at 80% volume
- Approx. 70 h
- Music playback at maximum volume
- Approx. 60 h
- Talk time
- Approx. 40 h
- Connection range
- 10 m
- Driver dimensions
- 8 × 4 mm
- Impedance
- 32 Ω ±15%
- Frequency response
- 20–20,000 Hz
Battery life and wireless range vary with usage and environment. Confirm the current configuration and availability with our team before ordering.
OEM CUSTOMIZATION & SAMPLES
Make it your brand.
Custom logo
1,000 unitsMinimum order quantity for OEM logo customization.
Custom packaging
1,000 unitsMinimum order quantity for OEM packaging customization.
Paid samples
Credit toward your orderSamples are charged. The sample fee can be credited toward your bulk order when you place it.
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