Bluetooth wireless audio transmission, metal sense design, portable, hanging portable design

Version: V3.0

Frequencies: 2.402-2.480GHz

Max. power output: 3W

Mic sensitivity: -32db

Distance: 10 meters

Data transmission: Up to 3Mbps (over the air)

Charging voltage: 3.7–4.2V DC

Static state current: >1UA

Built-in 600mAh rechargeable Li-ion battery

Antenna: Built-in antenna with phone handsfree