The Walkman Blog: Sony WH-CH720N and WH-CH520 leak (update 2)
iTWire - Sony
Sony Announces Two New Headphone Models - STG Play
Sony Announces Two New Headphone Models - STG Play
Pricing, specifications and colours of Sony WH-CH520 and WH-CH720N headphones leak online - News
The Walkman Blog: Sony WH-CH720N and WH-CH520 leak (update 2)
Press Releases Sony Asia Pacific
Pricing, specifications and colours of Sony WH-CH520 and WH-CH720N headphones leak online - News
Sony releases affordable WH-CH720N & WH-CH520 wireless headphones — Aaron x Loud and Wireless