Bluetooth wireless earbuds housed in a 350 mAh recharger case. Music (stereo), hands free calls (stereo). Operating range: 33ft/10m. Approx 4 hours of play/talk time. Auto shut off after 5 standby minutes. Connect via Bluetooth V 5.0 Recharge time: 1 hour. Indicator lights Blue exterior for case power level, Red interior when earbuds recharge. Includes Micro USB charging cable and manual. Certifications: FCC, MSDS and UN38.3.