sx-991 wireless bluetooth neckband 4.1 sport stereo sx991 earphone headphone with mic bass for iphone lg android (black)description:
industry-leading csr bluetooth 4.1: supports faster pairing with one switch button design, lower latency. Compatible with iphone, android, windows phone, other bluetooth enabled devices. Stream audio: enhanced dual 8mm speakers deliver extra bass and crisp treble precisely. Bring you the ultimate music experience. Unique foldable design: foldable design provides extra flexibility, portability, and durability. Convenient to carry in your bag for daily use and for travel. Durable battery performance: standby time up to 300 hours, music time up to 16 hours and talking time 18 hours. Fully charged in 3 hours. Enjoy your wireless music world with out any worry.
Features: bluetooth:csr4.0. Support:hsp,hfp,a2dp,avrcp. Working distance:10m. Charging time: 3.5 hours. Talk time:18 hours. Music time:16 hours. Standby time: 300 hours