Product information: Colors: SY-T4 Khaki, SY-T4 Black, SY-T4 Pink, SY-T4 Gray Transmission Distance: 10 meters Battery Life: Over 8 hours Material: ABS Wearing Style: Head-mounted Style: Minimalist Battery: 300mAh Working Time: 15 hours Charging Time: 2 hours Solution: Jerry 5.3 Speaker Size: 40mm Transmission Range: 10m Packing list: Type-C charging cable, AUX audio cable, instruction manual, and color box.