If you have any question, please contact us directly, your satisfaction is assured. Chip for SY11-1: csr8645 Wireless Handsfree Headphone Compatible Compatible with all iOS and Android Smartphones,tablets,Windows devices and more. Built-in Mic The Bluetooth headphones feature built-in HD microphone which transmits your voice with the great quality. Get Your Best Fit Great sound performance is in selecting the right eartips. This Wireless Earbud comes with 3 different sizes of 2-Flange soft sicicone eartips. Because everyone's ears are different, be sure to try all sizes of eartips. Only with the right size eartips will you enjoy a snug fit & premium sound quality. Warning: Not for swimming and diving. Basic parameter Bluetooth chip:CSR8645 Bluetooth version:V4.1 Bluetooth Protocol:APT-X,A2DP,AVRCP,HFP,HSP Wireless range: 10m Call time:About6-8 hours Play time:About 6-8 hours Standby time:About 180 hours Battery capacity:Polymer lithium ion battery 90mAh Charging time:About 2 hours Charging power supply:USB MICRO & portable power supply Product weight:17g(0.6ox) Product size:480*39*25mm horn:10mm 0.25W Multipoint Connection:SupportCall number:Support Voice answer:Non support Voice prompt:English/Chinese Battery status display:(Support IOS system power display,Androd 4 with plug-in power display) Auto connect:Support to connect automatically Voice prompt Switch: With the headphone in paring mode, press "+" for 2 seconds, the voice prompt can be switched between English and Chinese.The earphone is shipped with English voice prompt.
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