XUNDD W005 Open-Ear bluetooth Earphones-Beige

XUNDD W005 1 Pair Open-Ear Earphones Bluetooth 5.4 Earbuds with Earhooks Play/Talk Time: About 4h/4h (70% volume) Transmission Distance: about 10 meters Frequency Response: 20-20kHz Bluetooth Version: 5.4 Charging Box Battery Capacity: 300mAh Support Protocols: A2DP, HFP, HSP, AVRCP Standby Time: Approximately 50H (headphones) Executive Standard: Q/XUNDD 8-2023 Impedance: 32Ω Charging Voltage: DC 5V Headphone Battery Capacity (L/R): 30mAh Charging Time: Charging case 90mins/Earphones about 45mins