Hybrid Dynamic Driver & Balanced Armature Driver Balanced Armature Driver & Hi-Res Audio Hybrid Dynamic Driver System LDAC HD Audio-decoding OrigX Pro High Quality Sound technology, which is a wide frequency technology that supports 12Hz to 44.1kHz Environment And Active Noise Cancellation, built-in 6 microphones, designed with Environment noise reduction technology, can block 90% of background noise, thereby reducing ambient noise by up to 35dB, Noise reduction highlights the call effect. LED Digital Display Compatible with Type-C and wireless charging, It is also equipped with a digital LED smart display that can let you know the headphone battery in real-time. Support TOZO APP & 16 Preset EQ Modes Great Bluetooth 5.3 Technology Ergonomic Design & Long Distance Connection, Excellent ergonomic design and small size of the whole earbuds make the in-ear surface perfectly fit the inner curve of the ear creating a comfort of more scientific and secure.