Wireless sports earphone, 8 hours listening duration

Product specifications• Name of coupling: T3530• Version: V5.4• Connection distance: 10 meters• Supported program protocol: A2DP/AVRCP/HSP/HFP• Battery type: Lithium polymer battery• Built-in battery in the headset: 60 mAh*2• Standby time: about 200 hours• Call time (80% volume): about 5 hours• Listening to music (80% volume): about 8 hours• Charging time: about 1.5 hours• Built-in battery in the charging case: 800 mAh• Battery input voltage: DC 3.7-4.2 volts• Charging input voltage: DC 5 volts +/-0.25 volts• Speaker size: 13 mm• Resistance: 32± ohms• Sensitivity: 109±3 decibels• Rated input power: 2mW• Frequency response: 50 Hz - 20 kHzTouch method• Power on: open the cover to turn on• Power off: place the earbud in the charging case, close the case cover to turn off• Play/Pause: double tap the play/pause button during music playback• Previous song: triple tap on the left earbud• Next song: triple tap on the right earbud• Voice assistant: press and hold the left/right button to wake up the language• Answer/end call: tap the left/right touch area• Reject call: press and hold the right button