In-ear earphones Promate Silken-C USB-C, ergonomic design, 1.2 m cable

Promate Silken-C are in-ear wired earphones with a USB-C connector and a 1.2 m cable, designed for direct connection to devices with USB-C ports. The earphones feature a 10 mm dynamic driver, metal earbud casing and an ergonomic shape intended to provide a steady, comfortable fit for prolonged use. An integrated high-grade microphone and in-line controller allow hands-free call handling and playback control.

Advantages

The 10 mm dynamic speaker delivers HD sound with deep bass response while maintaining clear mid and high frequencies. The metal housing of the earbuds increases durability and offers a compact, premium feel. Ergonomic earbud contours keep the earphones stable during daily use, and the 1.2 m cable gives convenient reach. A built-in high-grade mic supports clear voice calls, and the simple in-line controller lets you manage music and calls without touching your device.

Suitable for

• Listening to music and media on smartphones, tablets and laptops with USB-C
• Voice and video calls using the integrated microphone
• Everyday portable use thanks to compact, lightweight design

Key specifications

• Driver unit diameter: 10 mm
• Chipset: Bluetrum
• Sensitivity: 105 ± 3 dB
• Frequency response: 20 Hz – 20 kHz
• Impedance: 16 Ω ± 15%
• Input jack: USB Type-C
• Cable length: 120 cm
• Rated power: 3 mW; Max power: 5 mW

How to use

Connect the USB-C plug to a compatible device with a USB-C audio port. Insert the earphones into your ears so the ergonomic shape sits comfortably and securely. Use the in-line controller to play, pause or skip tracks and to answer or end calls. During calls, speak normally toward the built-in microphone for optimal voice pickup. Disconnect the earphones from the device when not in use and store them in a protective case if available.

Usage recommendations

Use at moderate volume levels to protect hearing and avoid prolonged exposure to high volume. Ensure your device supports USB-C audio output; if audio is not detected, check device settings or compatibility. Keep the cable untangled and avoid sharp bends near the connector to extend product life.