Sinclu is an original head phone wireless
With noise reduction/stereo
Tested and trusted
Sound 6d
It very good to use buy and you will not regret it
Wireless version: Wireless 5.3
Frequency range:2.402-2.480GHz
Working range: 10m
Standby time: 170 hours
Music play time:17 hours
Talk time: 17 hours
Charging time: about 2 hours
Frequency response:20-20000Hz