Bluetooth version: V3.1 or 4.0+EDR

Operation distance: 10m

Bluetooth frequency range: 2.4-2.4835GHz ISM band

Bluetooth sensitivity: -85dB

Music format: MP3/WMA

TF card support: 128M-32GB (card is not included)

FM frequency response: 87.5-108MHz

Rechargeable battery: 550mAh

Speaker: Diameter 40mm

Headphone sensitivity: 115dB S.P.L at 1KHz

Impedance: 32ohm

Frequency response: 20HZ-20KHZ

Rated power: 40mW

Power capability: 100mW

Microphone unit: 4.5 * 2mm -58dB+/-3dB

Plug type: 3.5mm stereo

Charging time: Approx. 3-5hours

Audio cable length: Approx. 1.1m / 3.61ft

Headphone size: Approx. 18 * 8.2 * 20.5cm 

/ 7.1 * 3.2 * 8.1in

Headphone weight: 315g / 11.1oz

Package size: 19.5 * 9.5 * 22cm / 7.7 * 3.7 * 8.7in

Package weight: 520g / 1.15Lbs

Package content:

1 * Headset

1 * USB Cable

1 * Audio Cable

1 * English User Manual

Features: 

Bluetooth + stereo headset combo + MP3 player + FM radio.

Wireless Bluetooth headset, compatible with Bluetooth enabled devices, 

such as for iPhone, iPad, HTC, Lenovo, Samsung, Tablet PC, etc.

Enhanced noise reduction, good choice for listening music, 

watching movie, answering phone calls, etc.

Support TF/Micro SD memory card.

With FM function, can listen to the FM radio.

Supplied with a 3.5mm cable that you can use to connect the 

headphone to devices without Bluetooth.

Multifunctional keys allow you to power on/off, answer/hang up/

reject/redial call, pause and play, vol+/-,

 next/previous track.EQ mode can be changed by short press FM/MP3 

button (EQ mode includes 

Natural/Pop/Rock/Jazz/Classic/Country/Heave bass),

 bring you vivid sound field, sound clarity and enjoy different styles of music.

Powered by the lithium battery (can be charged via USB).

Good quality and fashionable appearance; adjustable length hinges 

and very comfortable to wear

1.Headhand:PP plastic +PU

2.Headphone/earphone shell:ABS

3.Earmuff sponge:PU

4.Surface soloution: normal/UV coating/rubber paint

5.logo printing:silk printing, laser etching, water transfer printing,

heat transfer printing,color printing

6.Test: Lead cadmium<100ppm,non-6p