About this item 【10mm PU Diaphragm&PEK Composite Diaphragm】To achieve CD-class sound quality and HiFi listening experience, Kinera YH802 adopts a custom 10mm PU+PEK composite diaphragm speaker and a 0.03mm imported pure copper coils for vivid stereo sound performance. The HiFi grade quality and tuning presents a clear treble with deep bass to meet most user needs 【Hybrid Active Noise Cancellation&ENC Call Noise Cancellation】Kinera YH802 adopts ANC technology to achieve an outstanding -35dB noise reduction level. Via the DSP noise reduction chip and processed with six high-quality feedback noise reduction microphone, it can accurately capture and analyze external noise to produce its opposite signal to offset, thus blocking outside noise. Moreover, in transparent mode, with ENC call noise reduction, you can hear clearly even in complex environment 【Bluetooth 5.0&Up to 24 Hours Battery Life】Kinera YH802 features fast and stable Bluetooth 5.0 chip and long-lasting battery life. You only need about 2 hours to fully charge the case and about 1.5 hours to fully charge the earbud. With one single charge, you can enjoy up to 8 hours playtime and more than 24 hours total play time with the charging case. You are able to enjoy uninterrupted wireless music the whole journey 【Hand-painted Case&Comfortable Ergonomic Wearing】YH802 features a case designed and painted by Kinera professional hand-painters to mostly interact technology artistry with its users. Weighing only 5g each earbud, as lightweight as a feather, you won’t feel bulky. Even for long time wearing, you won’t feel fatigue 【Support AAC+SBC Dual-Mode HD Decoding】 To essentially improves sound quality, brings more details more clarity to music and reduces transmission latency, AAC has higher horsepower and more details to reproduce lossless sound quality, while SBC provides HD sound quality, compatible with various devices in the market