ZEALOT S27 Multifunctional Bass Wireless Bluetooth Speaker, Built-in Microphone, Support Bluetooth Call & AUX & TF Card & 1x93mm + 2x66mm Speakers(Black)

1. Charging voltage: DC5V working voltage: 7.4V.
2. Speaker: 4ohm.
3. Frequency response: 80hz-20khz.
4. SNR:>=95dB distortion: <1%
5. Transmission distance: about 10m.