Grade 8 Waterproof Swimming MP3 Bluetooth 5.0 Wireless Headphones Built-in 16G

Product information: Single package weight: 125g Outer box size: 153*113*53mm Host size: 145*102*50mm Host weight: 42g Available Colors: Black/Grey/Blue/Red Shell material: ABS PP Support system: Windows/OS Mac system (genuine) Win7, Win10 Operation voice: support Chinese and English switching Working temperature: 0~ 50 Battery capacity: built-in rechargeable 300mAh polymer lithium battery Battery voltage: 3.7V Charging method: magnetic data cable electric shock charging Playing time: about 10 hours Music format: MP3;WMA;WAV;APE;FLAC Folder Play: Compatible Other functions: wake up the voice assistant (Siri) with one key Sequential playback: You can name A B C… or 1 2 3…. Long charging time: about 2 hours (up to 4 hours) Charging voltage: 5V Charging current: 1A Optional Specifications: 16GB Bluetooth Version Waterproof grade: IPX8 Packing list:Anti-noise earplugs 1; swimming waterproof plugs 1; product manual 1; silicone adjustment strap 1; magnetic data cable 1; host 1; packing box 1