Sony WH-CH720N are an affordable version of Sony XM5. though they can't compete with XM5,some features are common in both the headphones. go through detail review of CH720N.
Sony WH-CH720N review – Pickr
Sony WH-CH720N wireless headphones review
Sony WH-CH720N wireless headphones review - news
Sony WH-CH720N Wireless Headphones Review: Decent Enough for the Price
Sony WH-CH720N Review: Good Sound, Effective ANC, Long Battery Life - Counterpoint
Sony WH-CH720N Review: Good Sound, Effective ANC, Long Battery Life - Counterpoint
Sony CH-720N Review: ANC Headphones Get Some Nice Upgrades - CNET
Sony WH-CH720N review: Budget-friendly headphones with premium sound
Sony CH-720N Review: ANC Headphones Get Some Nice Upgrades - CNET
Sony WH-CH720N Review