Sony WF-SP900 True Wireless Sports Headphones 

About this item

• Complete wireless freedom for all your sporting needs with an IPX8 waterproof/weatherproof rating
• 4GB of internal memory so you can playback music without having to take your phone with you
• Improved design for a smaller, lighter and more comfortable fit while giving high stability
• 6 hours of playback from internal memory with 3 hours playback from Bluetooth and with 3 charges in the case
• Wide range of usability features including touch controls, stereo calling and Google Assistant compatibility

Features:
1. IPX5/8 waterproof grade, IPX6X dustproof grade
2. Ambient Sound Mode
3.4G memory space
4. Battery life: Bluetooth mode: about 12 hours (3 hours headset + 9 hours charging box); player mode: about 21 hours (6 hours headset + 15 hours charging box)
5. Support Bluetooth/NFC