Specification:1. Brand: Maxchange2. Model: MX63. Color: Black, Grey4. Connection: bluetooth 4.25. Frequency Range: 2.4-2.48GHz6. Transmission Distance: 10m7. Frequency: 20-20KHz8. Operating Hours: 8 hours9. Battery Capacity: 120mA*110. Charging Time: 1.5-2 hours11. Standby Time: 180 hoursFeatures:1. Special magnetic attraction design, effectively prevents the cable winding and makes it more flexible, you could stow your earbuds arround your neck when you don't use it. 2. IPX4 waterproof, sweatproof and dustproof, more suitable for outdoors using, running or climbing mountaings with music.3. Ergonomic earbud design, sloping into your ears, more comfortable and avoiding sound-lost.4. bluetooth connection, up to 10m transmission range.5. Supports wire control.Package Included:1 * Maxchange MX6 bluetooth 4.2 In-Ear Sports Bass Earphone Magnetic Attraction Earphone