Description
BLUETOOTH HEADPHONES
Rounded cups. Everyday wireless listening.
Dark grey and black C-2377 headphones with Bluetooth 5.4, 40 mm drivers and cushioned earcups. TF card playback, FM radio, a built-in microphone and a folding headband offer several ways to listen.
- Bluetooth version
- 5.4
- Driver diameter
- 40 mm
- Wireless range
- Up to 10 m

MADE FOR YOUR LISTENING ROUTINE
Grey tones, with padded cups.
A padded adjustable headband joins cushioned cups through curved silver-grey supports. Physical buttons sit along the cup edge, and the folding frame makes storage more compact.
Bluetooth 5.4 provides a listed range of up to 10 metres. The 40 mm drivers have 32-ohm impedance with a listed tolerance of ±15%. TF or microSD cards from 128 MB to 32 GB and FM radio from 87.5 to 108 MHz provide other listening modes.
The built-in microphone supports calls. Charging uses DC 5 V and takes approximately 2 hours. Standby time is listed as up to 100 hours; this is separate from music playback time.
TECHNICAL DETAILS
Specifications.
Audio, connections and design
- Model
- C-2377
- Colour
- Dark grey / black with silver-grey supports
- Wearing style
- Headband headphones
- Bluetooth version
- 5.4
- Sound
- Stereo
- Wireless range
- Up to 10 m
- Driver diameter
- 40 mm
- Impedance
- 32 Ω ±15%
- Sensitivity
- 121 ±3 dB
- Frequency response
- 20 Hz–20 kHz
- Bluetooth frequency band
- 2.402–2.480 GHz
- Transmission power class
- Class 2
- Bluetooth profiles
- A2DP, AVRCP, HSP, HFP
- Memory card playback
- TF / microSD, 128 MB–32 GB
- FM radio band
- 87.5–108 MHz
- Charging input
- DC 5 V
- Charging time
- Approximately 2 hours
- Standby time
- Up to 100 hours
- Microphone
- Built-in microphone
- Storage design
- Foldable
- Headband
- Adjustable, with padded top
- Earcups
- Padded ear cushions
- Controls
- Physical earcup buttons
EVERYDAY USE
Set up. Listen. Store.
Getting started
Charge before first use. Switch on the headphones, open Bluetooth settings on your audio device and select the headphones to pair. Start playback at a low volume, then adjust gradually.
Looking after your headphones
Wipe the headband and ear cups with a soft, dry cloth. Keep the charging port dry and avoid excessive heat. Store without putting pressure on the ear cups or twisting the headband.
Need order support?
Email contact@kyberkinb.com with your product name or order number. See our Refund Policy for return information.






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