Brand: Cayin
Power output: 2.7
The lowest frequency, Hz: 20
Earpads material: silicone
Headphone type: wired
In-Ear headphone type: with a wire
AirPlay support: yes
Battery charge indicator: yes
Bluetooth version: 4.2
Brand: ddHiFi
Headphone type: wired
The lowest frequency, Hz: 10
Brand: Noble Audio
Headphone type: wireless
Fast charging: yes
Balanced cable: yes
Brand: 64 Audio
Cable length, m: 1.2
Headset type: stereo
Brand: Sennheiser
Type of wireless headphones: True Wireless