product feature
<br />-Bluetooth V2.1+EDR standard, to ensure high quality and pure stereo sound transmission.
<br />-High-speed transmission in 10 meters(Class 2 standard), portable and wirelss.
<br />-Innovated double damping balancing technology, present perfect music.
<br />-Long talk time, Music player with A2DP.
<br />-Function Keys : Volume +/ Volume -, music playback, pause, previous song, next song.hang up, reject calls, last number call-back.
<br />-Function:support TF card,support FM radio
<br />-Universal for all bluetooth devices
<br /> 
<br />product specification
<br />Model:Mini 503 
<br />Bluetooth Version: V2.1+EDR Class II 
<br />Frequency:2400.0-2483.5MHz 
<br />Bluetooth Supported: Headset, Handsfree, A2DP and AVRCP 
<br />Chipset:CSR 
<br />Operation Range:10m 
<br />Talk Time:2-3 hours 
<br />Music Playing Time: up to 7 hours 
<br />Stand by Time: up to 250 hours 
<br />Speaker diameter:30mm 
<br />Impedance:32  
<br />A microphone head size: 2x4mm 
<br />Directional:Multi azimuth 
<br />Sensitivity:-42db 
<br />Noise reduction:Active noise reduction 
<br />The max power dissipation: 25MA±5 
<br />Working voltage:3.0-4.2V 
<br />Color: Red , Black, Blue, Gold ,White
<br /> 
<br />package included
<br />1 xHeadset 
<br />1 x USB charging cable 
<br />1 xUser manual
<br />