The WE2 earphones have Bluetooth 4.1 technology allowing them to be compatible with a wide range of devices. They have a long lasting battery which gives a standby time of up to 100 hours and a run time of up to 4-6 hours.
These earphones feature noise cancelling technology and an resistance of 40Ω, a sensitivity level at 102+3dB and a frequency response range of 20-20000Hz.