Mikobox Bluetooth 4.1+EDR Class2 Wireless Stereo Headset Headphones Earbuds Earphone With Mic Hands-Free Answer Call, A2DP, AVRCP For iPhone 6 Plus, Samsung Galaxy S6 Note4, LG G3 G4 And Other Smartphones Bluetooth V4.1+EDR Bluetooth Headset&Hands-free, A2DP, AVRCP 92dBm?RX?sensitivity?and?+9dBm?TX?output?power?capability Working distance: up to 10meters/30ft Compatible with all A2DP stereo Bluetooth enabled devices, such as iphone, ipod, Smartphone, cell phone, computer and Bluetooth devices 24?bit?Audio?codec,?-98dB?SNR