What are the technical specifications of the Zealot S78?

The S78 uses Bluetooth version 5.2 with a transmission distance of 10 meters and a frequency range of 20Hz–20KHz. The speaker configuration is Φ120mm×2+Φ42mm×2, with an SNR of ≥90dB, less than 1% distortion, a weight of 4.4kg, and dimensions of 410×167×185mm. The charging voltage is DC 5V and the working voltage is 7.4V. (Page 1)