HAVIT TW917 True Wireless Bluetooth 5.0 Smart Pairing Earbuds with Charging Case_White

-Bluetooth V5.0

-Smart touch control
-Earbuds battery: 40mAhx2
-Cabinet battery: 3.7V 350mAh
-Speaker: ∅12mm/5mW
-Music/Talking time: around 4 hrs
-Hi-fi audio. HD stereo calls
-Type-C charging pot
-Smart pairing
-Master slave switch
-Activate Voice Assistance(Siri,etc.)
-Earbud dimensions: 19x39x22mm
-Net weight:4gx2(Earbuds)/39g(Charging case)
-Wireless working range: 10M (without obstacles )
-Speaker sensitivity: 90±3dB  1kHz/1mW
-Profiles supported: HFP,HSP,A2DP, AVRCP AAC,TWS  
-Impedance: 16Ω±15% 1kHz
-Mic sensitivity: -42 ±3dB
-Speaker frequency: 100Hz～10KHz
-Input voltage / current: DC 5V/1A
-Warranty; 180 days