Spello True Wireless Earbuds with a unique semi-open design deliver even extremely strong bass. They fit your ears perfectly, create no pressure and the silicone cover seals them well. The graphene membrane and the frequency range of 50 Hz to 24 kHz ensure superior sound quality and the 104 dB sensitivity grants loud playing with low power consumption. Making calls is enjoyable with the ENC (Environmental Noise Cancellation) feature blocking any external noise. Pair these wireless earbuds with your device via Bluetooth and control them with just a touch; each earbud works separately. They guarantee 4 to 6 hours of continuous use, fully charge in 1 hour, and the flip-up case charges in 1.5 hours via a USB-C cable. Use these earbuds anywhere as their IP55 protection makes them dust and water-resistant.