K520 Stereo Bass Wireless Earbuds

Wireless Bluetooth Earbuds (Version 5.4) – Compact in-ear headphones with a 13mm driver unit, clear sound, and fast charging case for everyday listening.

✅ Overview

✔ Bluetooth Version 5.4 (specs) – Ensures stable connection, low latency, and efficient power use.
✔ 13mm Moving Coil Unit (specs) – Larger drivers for richer sound and stronger bass response.
✔ Wide Frequency Response: 20Hz – 20kHz (specs) – Covers the full audible spectrum for balanced audio.
✔ Battery Life (specs) – 5 hours of continuous music playback and up to 100 hours standby.
✔ Fast Charging (specs) – Both earbuds and charging case recharge within 1.5 hours.
✔ Lightweight Design – Comfortable for long use, suitable for workouts, commuting, or casual listening.

✅ Product Information

• Category: Wireless Bluetooth Earbuds

• Bluetooth Version: 5.4

• Speaker Size: 13mm moving coil driver

• Frequency Response: 20Hz – 20kHz

• Sensitivity: 105dB

• Impedance: 32Ω

• Microphone Sensitivity: -38dB

• Headphone Battery: 25mAh (3.7V) lithium-ion polymer

• Charging Case Battery: 230mAh (3.7V) lithium-ion polymer

• Charging Time: ~1.5 hours (earbuds & case)

• Music Playback: ~5 hours

• Standby Time: ~100 hours