Havit Wireless Earbuds OWS902

Chip:JL6973D4
Bluetooth Version:V5.3
Earbud Battery:50mAh*2(Fully charged in 1.5H)
Charging case battery:400MAH
Play time:6H (60% volume)
Talk time:4H (60% volume)
Standby time:200H
Charging time:about 2H
TYPE C port"
"Charging case 
Dimension:72*63*27.3mm(WHD)                                                                                       
Earbud dimensions:46.2*48.5*17.2mm(WHD)      
Net weight:6.8g*2(Earbuds)/48g(Charging case)                                                                                                                 
Wireless working range:10M (without obstacles )  
Profiles?supported:SBC/AAC            
Speaker:Φ10*12 mm                      
Speaker sensitivity:116±3dB                 
Impedance:7Ω±15%                     
Speaker frequency:20Hz-20kHz                    
Input voltage/Current:DC 5V/300mA"