What is the difference between bat ultrasonic payment and traditional near-field payment NFC? What are the convenient places?

The "Bat" ultrasonic payment system developed by Mobo Company innovatively adopts online payment, which solves the problem of near-field payment. Among the key technological innovations involved, Mo Bao Company has applied for an invention patent. Using Mo Bao's patented technology can solve the problem of mobile phone hardware transformation caused by the low penetration rate of NFC-enabled mobile phones, thus greatly reducing the difficulty of promotion!