At the IFA conference, Hisense introduced two new 4K products in the NU7700 series, one is the 55-inch version, and the other is the 65-inch version, and the next 75-inch version will be added. Now, Hisense announced that the two new TVs are officially open for pre-sale, of which the 55-inch price is 8,999 yuan and the 65-inch is 13,999 yuan. The biggest feature of the two new TVs of the NU7700 is Hisense's patented air sound field technology, which uses a dual-mode resonance ultrasonic sound box to seal directly into the ear through air vibrations, thereby presenting a three-fold volume of traditional bass-reversed speakers. The sound quality that comes out of this way is mellow and hierarchical. In addition, NU7700 supports multi-zone dynamic backlight control technology, each control unit can achieve 4096-level fine dimming (to achieve HDR effect), also provides multi-point WiFi (MU-MIMO WiFi technology), the introduction of wisdom for video playback Shadow mode, online video 2 seconds to start broadcast, official propaganda This is 60% faster than regular TV. Hisense NU7700 adopts Motion Flow intelligent motion frame measurement technology in image quality to ensure that users can see satisfactory motion picture. As for sound effects, new TVs provide Waves professional audio processing technology (9-band EQ tuning), adding super bass , vocal enhancement, clear treble, 3D sound effects personalized tuning. How do you think?