lenyes ktv speaker s829

bluetooth version:v5.0 bluetooth connection name: s829
bluetooth connection straight-line distance: 18 meters
2.bt bluetooth mode
aux mode: support 3.5mm audio input jack
tf card mode: support ape, flac, wav, mp3 file formats, up to 64g
u disk mode: u disk mode supports ape, flac, wav, mp3 file formats, and supports up to 64g
usb power supply: supports emergency current up to 1a
eq sound switching mode
microphone mode
remote control: support 433 remote control function
wireless microphone: support uhf wireless microphone
speaker parameter (40w*2) 80w
battery capacity: 4000mah power battery (3.7v2000ma*2)
working time: 3h ()
standby time: 10 minutes automatic shutdown
charging time: 5 hours 1 hour
charging mode: type-c 5v/2a
low power alarm: low power alarm when the power is 15%.
3. cordless uhf wireless microphone parameters
charging type: type-c 5v 1a
battery capacity: 3.7v 1800ma
charging time: 3.5h
battery life: 10h
core type: dynamic microphone core
chip: bk9529
transmit power: 10db(uhf)
time delay: 3ms
impedance: 600 (± 15%) ω (at 1khz)