Ipx8 Waterproof Swimming MP3 Player

1 Plan: Action 2 Support system: Windows/OS MAC system (genuine) WIN7, WIN10 3 Frequency response: HZ 30HZ-20K 4 Working temperature: 0+50, 5 Power format: built-in rechargeable lithium battery 6 Playing time: about 4-6 hours after listening to the music 7 supported formats: WMA ...1 Plan: Action 2 Support system: Windows/OS MAC system (genuine) WIN7, WIN10 3 Frequency response: HZ 30HZ-20K 4 Working temperature: 0+50, 5 Power format: built-in rechargeable lithium battery 6 Playing time: about 4-6 hours after listening to the music 7 supported formats: WMA, MP3 music format 8 Function: Waterproof music earphone 9 Playing time: continuous listening to music for 5-8 hours 10 Long charging time: about 2 hours (not more than 3 hours) 11 Charging voltage: 5V 12 Charging current: 500 mA 13 Capacity: 8GB 14 waterproof grade: international protection grade IPX8 15 Host material/