Quality corresponds to purchase price, battery life is a shortcoming
MOCREO® Clipper Bluetooth Audio Streaming Adapter / Receiver for 3.5mm devices - Converts Wired 3.5mm headphones Wireless Music Streaming Stereo Headphones w / Handsfree - Compatible with all Bluetooth devices, iPhone5 / 4 , Samsung Galaxy S5 / S4 and other Android devices (electronics) 4
MOCREO® Clipper Bluetooth Audio Streaming Adapter / Receiver for 3.5mm devices - Converts Wired 3.5mm headphones Wireless Music Streaming Stereo Headphones w / Handsfree - Compatible with all Bluetooth devices, iPhone5 / 4 , Samsung Galaxy S5 / S4 and other Android devices (electronics)
I use it not as a speakerphone, only as to listen to music Headset Bluetooth expansion. About voice quality I can not report accordingly. Sound quality is for me the price range, it roars a bit, it is not a hi-fi - but with the appropriate headphones (here: Brainwavz M3, 20 Ohm) quite plausible. However, battery capacity is likely to be 20-30% higher.