BOMAKER SiFi User Manual page 14

Earbuds status
Charging Rate
0％～25％ Low battery
25％～50％ Medium battery
50％～75％ High battery
75％～100％ Fully charged
LED Light Status
Four lights keep flashing
The leftmost led light on,
all other led lights are off
The left two lights on
Three lights are on, only one light
keep flashing. When fully charged,
all led lights are on