Product specifications:
Product Name:TWS-T290
Bluetooth connection name: H3
Bluetooth version:5.0
PowerInput: DC 5V
Headset Battery capacity: 3.7V/40mAh
Call/ play time: about 5 hours (Hours)
Charging time: about 60 minutes (Min)
Charge box battery capacity: 3.7V/ 350 mAh
Support agreement: HSP / HFP /A2DP /AVRCP
Sensitivity: 120 士 5dB
Frequency response range: 20-20000Hz
lmpedance: 16