Bluetooth 4.0 Sports Weatherproof Earbuds with Microphone - Blue

Features:     Bluetooth V4.0     Portable lightweight and sweatproof design     Built-in microphone     Built-in rechargeable Li-ion battery     Multipoint pairing (up to 2 phones)     Voice command for picking up / rejecting calls     Built-in 14.2mm nedymium driver     Clear bass resonance, CVC wind noise reduction, and superior sound isolation   Specification:     Bluetooth version: V4.0     Frequency range: 2.4GHz-2.48GHz     Operating distance: Up to 10m (free space)     Bluetooth profiles: A2DP, AVRCP, HSP, HFP     Standby time: Up to 180hrs     Talk/music playtime: Approximately 4 -5hours     Charging time: Approximately 2 hours     Frequency response: 20Hz-20kHz     Operational temperature: -10 to 50°C   Package:     1 X Bluetooth Headset     1 X USB charging cable     1 X User manual