Specification:<br /><br />    Bluetooth name: HV-900<br />    5 Colors for your choice: Pink・Red・White・Black・Blue<br />    Charging voltage: MICRO USB 5V   <br />    Working current: 25-30mA   <br />    Bluetooth working range: 10m   <br />    Output power: 2 x 20mW   <br />    Frequency range: 2.401-2.480GHz   <br />    Frequency response: 20Hz-20KHz   <br />    Working time: Music state 3~4 H   <br />    Charging time: 2-3h    <br />    Style: Sports・ Fashion   <br />    Perfect choice for you.   <br />    Lightweight and convenient.   <br />    Noise Reduction ・ Echo Cancellation ・ Voice Guidance ・ Sweat-proof for Smart Phones.<br /><br />Package Included:<br /><br />    1 x HV-900 Bluetooth Heasdet<br />    1 x Micro USB Cable<br />    1 x Instruction Manual<br />    1 x Pairs of Earbuds<br /><br />Packed Safely in Bubble Bag.