1.Bluetooth version:V2.1 Class2
2.Chipset: CSR 8635 Bluetooth System +EDR
3.Bluetooth mode:HFP，HSP，A2DP，AVRCP
4.Frequency response:20Hz-20KHz
5.Sensitivity:-80dbM
6.Transmission range:about 10m
7. Battary Volume:Li-polymer rechargeable battery 250mA
8.Talking time:up to 10 hours
9.Listen to MP3 consumption time:about 4 hours
10.LIstening to FM consumption time:about 8 hours
11.Operating temperature:-10°C to 55°C
12. Dimension:90mm*54mm
13. Operating Current:20 mA
14.Waterproof:IP67
Package in clude :
*1xMini503bluetooth earphone
*1xUsb cable
*Exceptional audio with noise suppression and echo cancellation
*Convenient power slide switch
*Intuitive talk and music controls
*Up to 10 hours of talk time
*PCB antenna
*5-band fully configurable EQ
*Surface mount package for embedded applications
*Security simple pairing
*Voice Promote(Optional)
*Parameters configurable
*1-mic CVC audio enhancement
*SBC， MP3 and ACC decoder support
Color
Colors: red， blue， white， black， gold.
Please choose the colors you like，or we will send goods Randomly，thank you !!!
Package Content
1 x Bluetooth Headphone
1 x Retail box
We provide 1 month replacement and 12 months maintenance warranties. Items can be replaced during the first month or maintained for the first year.
***** Buyers are only responsible for the return shipping fees for warranty items.(In most cases， buyer will only have to return the problem components rather than the entire package.).
Before returning items， please make sure you get our (the seller`s) return address， and write "gift" on the delivery detail sheet. Please use regular postal service and send us the tracking number.As soon as we receive the items， we will repair or exchange them ASAP.
We do our best to serve our each customer the best that we can.
We will refund you for items returned within 7 days of you receiving them， for any reason. A full refund will be given if items are returned in their original condition.
Merchandise which is damaged or missing components is not refundable.
Buyers are responsible for return shipping with proper packaging.
On receiving items， we will refund you immediately.