Product has been fully upgraded since Mar 10, 2017. 
<br />1. Battery capacity is increased to have longer working time. Up to 9 hours talking time(MAX). 
<br />2. Circuit design is optimized to improve performance and reliability.
<br />3. Upgrade to IPX7 nano coating. 
<br />
<br />Specification: 
<br />  Bluetooth Specification: V4.1+EDR 
<br />  IPX7 Waterproof with Nano coating 
<br />  Noise Reduction: CVC 6.0 
<br />  Siri: supported 
<br />  Frequency response: 20 - 22kHz 
<br />  Charge time: about 1.5 hours 
<br />  Standbytime: 400 Hours
<br />  Support profiles: HFP, HSP, AVRCP and A2DP 
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<br />Package Includes 
<br />  Hussar Magicbuds Bluetooth Headphones 
<br />  S, M, L Ear Tips 
<br />  Micro USB Charging Cable 
<br />  Zippered Carry Case 
<br />  User Manual 
<br />  Cord Management Clip 
<br />
<br />
<br />They say music soothes the savage beast. That s especially true when you have powerful, in-ear bluetooth earbuds designed by the audio specialists at Hussar. We ve carefully crafted our 4.1 Bluetooth Headphones to not only be compatible with all the hottest mobile technology like your iPhone, Samsung Galaxy, Windows phone, iPad mini, and Alienware laptop but we ve made them super comfortable and secure with ergonomic design so you never have to miss a beat. Whether you re hitting the gym, doing yoga, or just love listing to podcasts at work, our headphones are sure to be the best gift you ve ever given yourself or friends. 
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<br />Tips for using:
<br />  Please do not expose the headphones under direct sunlight while charging, especially when environment temperature is high. 
<br />  Please avoid to use low quality or high current USB charger.
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