• YD03 Wireless Bluetooth 5.3 Headphones Digital Display with Charing Case
• Model : YD03
• Bluetooth specification:V5.3
• Bluetooth Profile:A2DP,AVRCP, HFP;HSP 
• Working voltage:3.1V~4.2V
• Charging voltage:5V-1A
• Battery capacity of the headset: 50mAh
• Battery capacity of the storage box:2000mAh
• Transmission distance:>10M 
• Call time:About 5 hour
• Play time:About 4 hour
• Waterprof :IPX4
• Charging time of headset:1hour
• Charging time of the Charging box:2 hour
• Products include
• 1 * YD03 Wireless Bluetooth 5.3 Headphones
• 1 * Charging box
• 1 * Charging cable
• 1 * User Manual
• 4 * Ear cap