Main Parameters: Product Model: XG88pro Bluetooth Earphones with Bluetooth Solution: Bluetooth V5.4 Product Speaker: 16mm Speaker Product Chip: Zhongke Lanxun Standby Time: 60+ Working Time: 4 Hours, Charging Time: About 1 Hour Communication Distance: Barrier-Free 10- 15m Earphone Battery Capacity: 80mAh Installation Box Materials: Complete Set Weight: 131g Product Accessories: Charging Cable + Bilingual Manual