Bluetooth Sports Neckband In Ear Earphones

Features
Maximum ruggedness and durability for Sweat and water resistance.
Vertical in-ear design for greater surrounding awareness and safety.
Antimicrobial ear adapters.
Ultra-lightweight neckband for a secure, comfortable fit.
Makes you enjoy outstanding stereo sound during outdoor sports like training for your cross country race.
Specifications
Bluetooth Version 3.0 Version
Bluetooth Profiles HSP, A2DP
Effective Range 8 meters
Frequency Range 2.4GHz - 2.48GHz
Frequency Response 100Hz - 20KHz
Distortion ≤1%
MIC Sensitivity -40db
Working Time 6 hrs for music / 8 hrs for talk
Voltage DC 5V
Charging Time 3 hrs
Weight 80g