Cheap earphone earbud, Buy Quality headphone earplug directly from China earphone htc Suppliers: In-ear Wireless Bluetooth Earphones 4.1 Sweat Proof Sports Earphones Music with Microphone for Iphone Samsung Smartphones Green
Feature: Bluetooth Version: V4.1 + EDR Bluetooth Profiles:A2DP / AVRCP / HSP / HFP / SPP Transmission Distance:up to 10m (free space) Frequency Response:20Hz-20KHz Drive Unit:10mm Speaker Impedance:16ohm Sensitivity(S.P.L):110dB Talking Time :about 7 hours Music Time: about 7 hours Standby Time :220 hours (onger than other bluetooth) Charge Time : about 1-2 hours Charging Interface:Micro-USB Headset weight: 16g Operational temperature: -10 to 50°C The earphone is sweatproof,but can not