Yusamas Bluetooth Headset TWD

Features Sensitivity: 103 ± 3 decibels Frequency range: 20 Hertz ~ 20 kilo Hertz Connection distance: ≥10 meters Headphone weight: approximately 3 grams * 2 Headphone battery: 30 milliampere hours Playtime: approximately 3 hours (at 60% volume) Connection time: approximately 1.5 hours Headphone charging time: approximately 1.3 hours Charging case weight: approximately 33 grams Charging case battery: 320 milliampere hours Charging case charging time: approximately 1.5 hours Compatibility: iOS and Android devices supporting Bluetooth technology