Clip it on. Extend when needed.
Attach the body to your clothing and pull out the connected earpiece for a call. The retractable cable keeps the earpiece with the main unit between listening sessions.
QRSC AUDIO / K52
K52
Small body.
Calls within reach.
A rounded body with contrasting frame finishes gives the K52 a compact everyday profile. A retractable earpiece, physical controls and incoming-call vibration keep everyday calls within reach.
Explore colours ↓
10 hApproximate music / talk time
320 mmRetractable cable
5Colour choices
CLIP-ON & RETRACTABLE
Clip it on.
Extend when needed.
Attach the body to your clothing and pull out the connected earpiece for a call. The retractable cable keeps the earpiece with the main unit between listening sessions.
PHYSICAL CONTROLS
Three buttons.
Everyday control.
The multifunction button handles calls and playback, while separate volume buttons adjust the listening level. A short press of the multifunction button answers or ends a call, or plays and pauses music.
CALL ALERTS & MULTIPOINT
Stay aware of
incoming calls.
Incoming-call vibration helps draw attention to a call. Two-device pairing lets you connect with two phones; the earphone handles one audio source at a time.
BATTERY & CHARGING
Recharge.
Reconnect.
A 70 mAh battery powers this compact mono earphone, with approximately 10 hours of music playback or calls.
10hApproximate music / talk time
70mAhBattery capacity
1hApproximate full charge
Figures follow the model specification sheet. Actual battery life varies with volume, calls and environment.
Black · Product view
CLIP-ON & RETRACTABLE
Find your finish.
A rounded body with contrasting frame finishes gives the K52 a compact everyday profile. A retractable earpiece, physical controls and incoming-call vibration keep everyday calls within reach.
Bluetooth5.0
Music / callsApprox. 10 h
Battery70 mAh
ChargingApprox. 1 h
Product appearance and finishes may vary by configuration.
A CLOSER LOOK
Explore the details.
Three buttons. Everyday control.
The multifunction button handles calls and playback, while separate volume buttons adjust the listening level. A short press of the multifunction button answers or ends a call, or plays and pauses music.
Stay aware of incoming calls.
Incoming-call vibration helps draw attention to a call. Two-device pairing lets you connect with two phones; the earphone handles one audio source at a time.
CHOOSE YOUR FINISH
5 finishes. One K52.
UNDERSTAND THE DETAILS
K52, in detail.
Explore the retractable construction, button operation, connection features and battery configuration.
The earpiece stays with the body.
The 320 mm retractable cable keeps the earpiece connected to the clip-on unit. The body measures 53 × 25 × 12 mm, or 19 mm thick including the clip. The original white-background photographs show the body, clothing clip and earpiece together.
- Mono earphone configuration with one earpiece.
- Choose the finish using the original colour photographs below the feature sections.
Call and music controls by touch.
Use the multifunction button for playback and call handling. A short press answers or ends a call, or plays and pauses music. The specification describes holding the button for approximately two seconds to reject an incoming call. Separate + and − buttons control volume.
- Power and pairing also use the multifunction button.
- Button behaviour depends on whether the earphone is idle, playing music or receiving a call.
Two phones, one earphone.
The supplied material describes two-device pairing and incoming-call vibration. This suits users who carry separate work and personal phones. Bluetooth 5.0 provides the wireless link, with a specified range of up to 10 metres in open conditions.
- Two-device pairing is not simultaneous playback of two audio streams.
- Walls, interference and the position of the phone can reduce connection range.
Understand the charging figures.
The 3.7 V, 70 mAh battery supports approximately 10 hours of music or talk time, and takes approximately one hour to charge. These figures follow the model specification rather than older promotional graphics.
- Charging input: DC 5 V.
- Listening volume and usage affect actual battery duration.
PRODUCT INFORMATION
K52 specifications
Standard configuration
- Bluetooth version
- 5.0
- Chipset
- JL6976D
- Audio configuration
- Mono
- Battery
- 70 mAh / 3.7 V
- Music playback
- Approx. 10 h
- Talk time
- Approx. 10 h
- Full charging time
- Approx. 1 h
- Charging input
- DC 5 V
- Connection range
- Up to 10 m in open conditions
- Body dimensions
- 53 × 25 × 12 mm (19 mm including clip)
- Cable length
- 320 mm
- Controls
- Multifunction button and volume + / −
- Multipoint
- Two devices
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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