HOCO E40 Mini Single Business bluetooth Earphone Wireless HiFi Headset With Mic for Cell Phones

Specification: Brand: HOCO Model: E40 Material: ABS bluetooth Version: V4.2 Wearing Type: In-ear Connectivity: Wireless Frequency response: 20-20000Hz Impedance: 32ohms Sensitivity: 105dB Charging Time: 2H Music Time: 4H Talk time: 4H Main Features: Lightweight, invisible and mini, comfortable to wear Free to choose left and right ear to wear Intelligently reduce headphone noise Upgrade Bluetooth 4.2 chip, compatible with multiple protocols, 10m transmission distance, stable connection, high-definition call