Ergonomic Comfort Fit Perfectly fits the curve of inner contour of ear. Keep your earbuds secure stay and much comfortable in your ears. Accurate sound tube angle perfectly fits your ear canal, and seal block out external noise. Provides a pure immersive sound. Imaginative Transparency to Create Crystal Buds Distinctive Transparent Crystal Elements Conceal Internal Components in A Minimalist Style while Sustaining The Semi-transparent Effect, Clear and Bright. Ultra-thin Layer Fully Demonstrates the Perfect Combination of Nature and The Beauty of Curves, Producing Sleek and Lightweight Stylish. Previous page IPX8 Waterproof and Sweat Proof Effortlessly Protects the Earbuds from Heavy Rain or Sweat during Intense Workouts and All-weather Conditions Crystal-Clear Call TOZO Crystal Buds are equipped with 4 microphones to reduce ambient noise through Dual-microphone AI algorithm, so you can enjoy High-fidelity audio and Crystal-clear call even in noisy environments. LED Digital Display The white digital display shows the overall battery life of the case and each individual earbud charge. It displays the remaining power and charging status, so no more worrying about low battery. Next page Premium Sound via ORIGX 2.0 The professional ORIGX 2.0 technology further optimises the performance of vocals and midrange, delivering more distinctive immersive and realistic sound through clear layers and extremely rich vocal music details. Previous page Preset and Customize EQ TOZO Acoustic Lab has provided 16 preset EQs in the TOZO APP according to different style musics, like Rock, Classical, Blue, Jazz, Hip-Pop, etc. Also can customize and save EQ in the APP. The Advanced Bluetooth 5.3 Technology Support HSP, HFP, A2DP, AVRCP. Provides in-call stereo sound. Greatly Improve the Transmission Speed and Providing You with A Low-latency Listening Experience. Next page Crystal-Clear Call TOZO Crystal Buds are equipped with 4 microphones to reduce ambient noise through Dual-Microphone AI algorithm, so you can enjoy High-Fidelity audio and Crystal-Clear call even in noisy environments. Charging is simple Compatible with USB-C cable and fast wireless charging, keeping the power at any times, achieving faster transmission speed and more convenient use experience.