F9-6 Wireless Headphones Bluetooth 5.0 Earphones Smart Touch LED Display TWS Stereo Headsets with Mi

F9-6 Wireless Headphones Bluetooth 5.0 Earphones Smart Touch LED Display TWS Stereo Headsets with Mic - Black LED digital display of battery level on the charging casePortable carry case, with small size, easy take and charge your earbuds in your pocketBuilt-in powerful Bluetooth 5.0 chip, power-on automatic pairing, fast pairing and stable connection, compatible with smartphone, tablet and laptopErgonomic design, the shape of the Bluetooth earphones are strictly designed according to human ear form, comfort is guaranteedHigh performance battery provides long playing time and long standby timeSpecifications:Bluetooth version: 5.0Bluetooth protocol: APD, AVRCP, HSP, HFPEffective distance: 10 meters (barrier-free)Microphone: YesPairing: Pick up automatic matchingImpedance: 32?Battery capacity: earbud: 50mAh, charging case: 1200mAhHeadphone usage time: 3-6 hours (depending on the volume)USB output: 5 V 1A