• Calus ENC-4 Pro earbuds deliver HiFi sound quality for an immersive listening experience. • Environmental Noise Cancellation (ENC) ensures clear calls by reducing background noise. • Enjoy over 6 hours of continuous music playback or talk time on a single charge. • The earbuds offer a standby time exceeding 100 hours, ideal for infrequent use. • Bluetooth V5.4 provides a stable and efficient wireless connection to your devices.