Bwoo BW03 Wireless Bluetooth Earbuds

Wireless Connectivity: Bluetooth 5.3 with a 10-meter connection range

Operating Frequency: 2.402–2.480GHz

Materials: Built from durable ABS plastic + PC (polycarbonate), with lithium batteries

Dimensions: 60 x 45 x 21mm ($\pm$5mm tolerance)

Battery Capacity: 300mAh for the charging box / 30mAh for each headphone

Input & Charging: DC 5V-1A input via a Lightning charging port (Takes about 2 hours for a full charge)

Playback & Talk Time: Up to 4.5 hours of music or talk time when used at 80% volume

Standby Time: Up to 40 hours for the headset alone, and up to 300 hours when kept inside the charging box