Bluetooth® wireless earbuds housed in a 350 mAh recharger case Music (stereo), hands-free calls (stereo) Operating range: 33ft/10m Up to 4 hours of play/talk time Auto shut off after 5 standby minutes 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 Connect via Bluetooth® V 5.0