KOSS KPH30KW Wireless On Ear Black

✅ Koss KPH30 Wireless 

Features & Highlights

• Wireless Bluetooth connection (presumably Bluetooth 5.x) 

• USB-C charging

• Up to 20+ hours of battery life 

• Integrated microphone and audio controls (play/pause, track skip, etc.)

• Analog audio pass-through: you can use a wired connection via optional KUSB-50 cord 

• Lightweight, on-ear design with a “patent pending suspension” headband for comfort

Technical Specifications

• Frequency response: 15 – 25,000 Hz 

• Impedance:

• Sensitivity / SPL: 104 dB SPL

• 1-Year limited warranty

• Input: 5V, 80mA (charging)

• RF / Bluetooth specs: 2,402–2,480 MHz range; modulation types, etc.

User Impressions & Discussion

• The sound is often described as similar to the KPH40 (another Koss model) but with slightly more bass.

• Very lightweight and comfortable for extended wear. 

• Because it is open-back (i.e. non-noise-canceling), ambient sound will be heard.

• In reviews, the maximum volume is noted as being “louder than I would want to listen to” with minimal distortion.