Fineblue FA80 Wireless Bluetooth earphone Stereo Bass Music Earphone Handsfree With Mic Neckband waterproof IPX-5 Sports Stereo (Green) Brand: Fineblue Model:FA80 Bluetooth Version: V4.0 Support Protocol: HSP, HFP, A2DP, AVRCP Transmission Distance: 10 meters Transmission Frequency: 2.4GHz Frequency Response: 20HZ-20KHZ Microphone Sensitivity: 110db Impedance: 32ohm Talking time: about 7 hours Music Time: about 6 hours Standby Time: about 100 hours Charging Time: less than 2 hours Battery: 95mAh