Esperanza TWS CARDERA Headphones Wireless In-ear Calls/Music Bluetooth Black

Backlight colour: Red Product colour: Black Wearing style: In-ear Backlight: Yes Product type: Headphones Recommended usage: Calls/Music Control type: Buttons Microphone in: Yes Bluetooth profiles: HSP Bluetooth version: 5.0 Connectivity technology: Wireless Wireless range: 10 m Bluetooth: Yes Battery technology: Lithium Polymer (LiPo) Battery technology (charging case): Lithium Polymer (LiPo) Battery capacity: 30 mAh Battery capacity (charging case): 300 mAh Charging source: Battery Battery type: Built-in battery Fast charging time: 60 min Input voltage (earpieces): 5 V Talk time: 4 h Ear coupling: Intraaural Intraaural headphones type: Earbuds Headphone frequency: 20 - 20000 Hz Base station USB connector: USB Type-C Base station colour: Black