Main Features: ● 2mm vibrating diaphragm to assure acoustic quality is true.
● Bluetooth V4.1， barrier-free linear transmission about 10m.
● HiFi stereo sound and strong deep bass to provide a music world.
● Elastic ear hook for sports， sweat resistance and not easy shed off.
● Built-in mic， hands free to talk， with sweat resistance design.
● Built-in 80mAh Li-ion battery， 4 hours working time.
● Only 14g， lightweight and comfortable to wear. Function: Answering Phone，Bluetooth，HiFi，Microphone，Song Switching Connectivity : Wireless
Application: For iPod，Mobile phone，Portable Media Player，Sport
Driver unit: 10mm
Frequency response: 20-20000Hz
Impedance: 16ohms Bluetooth: Yes
Bluetooth version: V4.1
Bluetooth distance: W/O obstacles 10m Package weight: 0.103 kg
Package size (L x W x H): 8.50 x 3.50 x 9.00 cm / 3.35 x 1.38 x 3.54 inches Package Contents: 1 x Earphones， 2 x Earhook， 10 x Earbud， 1 x USB Cable， 1 x Bag