Hifiman HE1000 WiFi Open-Back Planar Headphones with Bluetooth for kids Outer diameter:

Outer diameter:

which creates an extremely dense and rigid membrane capable of higher tensions and resulting in more responsiveness

Oxygen-free High-purity OFC Copper

enjoy a selection of prerecorded soundscapes that soothe and refresh

or the latest Titanium Shadow hip-dac3

Hifiman HE1000 WiFi Open-Back Planar Headphones with Bluetooth for kids Outer diameter:HE1000 WiFi WiFi Streaming Media Planar Headphone Key Features HYMALAYA Mini WiFi Streaming Nanometer Thickness Diaphragm Stealth Magnets Design Enhanced Magnet Headband Gen. 2 Why is Bluetooth Audio Quality Poor? Bluetooth chips also handle sound processing Bluetooth transmission bandwidth is equivalent to MP3 Bluetooth is Unable to Reach The Substantial Bandwidth Demands of High Definition Streaming Media Wi Fi Streaming is Able to Transmit High