Syllable D700 Sport Wireless Stereo Bluetooth 4.1 Earphone 2.4GHz-2.48GHz Headset Headphone For iOS Android Cellphone  <br> Features:  Sport wireless Bluetooth in-ear headset Handsfree built-in microphone Stereo music+calls Waterproof， but inapplicable for swimming Connect two mobile phones simultaneously Ergonomic design，high quality materials ensuring the headset comfortable for daily use  Specification:                 General               Model         Syllable D700               Color         Yellow               Wearing type         In-Ear               Function         Voice control， Microphone， Bluetooth， Multi connection function， Answering phone               Specification               Connectivity         Wireless               Application         Computer， Mobile Phone， Sport               Plug interface         Micro USB， Bluetooth               Extended Function               Bluetooth version         V4.1               Bluetooth mode         Hands free               Frequency Range         2.4GHz-2.48GHz               Operating Range         Up to 10m (barrier-free space)               Standby         180hours               Music Play \/ Talk Time         Up to 5 hours               Charging Time         About 2 hours               Support Agreement         A2DP， AVRCP， HSP， HFP               Frequency Response         20Hz-22kHz               Compatible with         Bluetooth 4.1 and 1.1\/1.2\/2.0\/2.1 etc. iPhone， iPad， iPod all generations， MP3\/MP4 Players， all android Smartphones &amp;amp; Tablets               Working Environment         -10 to 50 C               Dimension and Weight               Product weight         0.019 kg               Package size (L x W x H)         17.5 x 13.5 x 13 cm \/ 6.88 x 5.31 x 5.11 inch      <br>Package Included: <br>1 x Syllable D700 Sport Bluetooth Headset1 x Cable1 x User Manual2 x Replacement Pairs of Earbuds<br>                 <br> <br>  Detail Pictures: