IGADG Ultra-Mini Bluetooth CSR 4.0 USB Dongle Adapter USB Adapter(Black)

When you connect headset or speaker,feel the sound like handsfree, please You have to Uncheck "Handsfree telephony" from the services setting on your bluetooth device -> Control Panel/Hardware and Sound/Devices and Printers -> select your device and right-click, open Properties, then go to Services tab and uncheck Handsfree Telephony. Marked as your default device in Control Panel -> Hardware and sound -> Change system sound -> Playback -> select bluetooth device and select set defaults. CSR V4.0 Dongle Support Bluetooth voice and date transmission Ultra-compact, easy carrying and space saving. Experience stereo audio with Advanced Audio Distribution Profile (A2DP) support. Bluetooth Low Energy (BLE) protocol support. Up to 3 Mbps data transfer rate with Enhanced Data Rate (EDR) support. Backward support classic Bluetooth V3.0/2.1/2.0/1.1 Bluetooth version: 4.0 with EDR - data transfer rate up to 3Mbps ISM Band: 2.402-2.480GHz Support Profile: Serial Port, Object Push, File Transfer, LAN Access, Personal Area Network, Audio Gateway Compatibility Windows 10, Windows 8, Windows 7, XP, Vista ,2003, 2000,Me, Bluetooth-enabled devices, like iPhone, iPad, iPod,Samsung Galaxy,note ,smart phones, tablets, keyboards, mice, speakers, printers, projectors,headsets & more Package includes: 1 x Bluetooth USB Adapter 1 x Driver installation CD Warranty 3 - month warranty