Wireless stereo Bluetooth V4.0 EDR headphone with FM radio TF card slot
Main features:
● This is multiple functional Bluetooth headset: music player/FM radio
● Bluetooth V4.0 connection, enjoy wireless
● Built-in microphone and speaker, enjoy music and wireless communication
● Supports micro SD / TF card up to 16GB ( not included )
● 40mm unit diameter, high-quality audio output
● Can also use cable to be used as a normal headset
● Collapsible design, easy to carry

Specifications:
Bluetooth version: 4.0 EDR
Profile: HSP/HFP/A2DP/AVRCP
Effective range: 10m
Battery: 110mAh Li-ion battery
Music time: 4H
Talktime: 5H
Standby time: 120H
Input: 5V DC, 500mA
Charging time: about 2H
Microphone sensitivity: -58 +/-3dB
Speaker diameter: 40mm
Sensitivity: 85 +/- 3dB
Power: 30mW
Impedance: 32 ohm