Features:
sport wireless headphones design，CSR chip
Hands-free Phone call answer
Fashion with strereo sound，enjor the music anywher
Easy to Connect two mobiles at the same time
CSR 4.1 Bluetooth solution， stable connection guarantee

Specifications:
Model No: YT-K3 sport wireless headphones
Bluetooth version: CSR V4.1 +EDR
Bluetooth protocol: HFP1. 6. HSP1. 2， AVRCP1.4， A2DP1. 2
Battery capacity: 75mah
Stand-by time : about 100 hours
Talking Time: about 5 hours
Music playing time: about 4-5 hours
Charging lime: About 1. 5-2 hours
Frequency range: 2.4GHz-2.48GHz
Operating distance: Up to 10m (free space)
Frequency response: 20Hz-20kHz
Operational temperature: -10 to 50°C

Package includs:
1 x Bluetooth headphone
1 x USB Charging Cable
1 x User Manual
2 x Ear Rubbers