The Philips HearLink 9040 BTE TR is a premium Behind-the-Ear with Thin Receiver (BTE TR) rechargeable hearing aid sold as a pair of two devices, available exclusively through Costco Hearing Centers. Manufactured by Demant, the world's second-largest hearing aid manufacturer and maker of the flagship Oticon brand, the HearLink 9040 represents the top-tier "90" technology level in the Philips hearing aid lineup. This bundle includes both hearing aids and the Premium Charger, which functions as a portable protective case capable of delivering three full recharges of both aids without needing to be connected to a power source — ideal for travel or use in areas with inconsistent electricity.

The HearLink 9040 features AI-powered sound processing that automatically recognizes and adapts to different listening environments for improved speech understanding in noise. It includes binaural program and volume control syncing between both aids, multi-channel processing, automatic and adaptive directional microphones, and advanced feedback suppression. The aids support wireless audio streaming compatible with both Apple iOS and Android devices, enabling hands-free phone calls and direct audio streaming from smartphones, tablets, and TVs. The SoundProtect system reduces wind and transient noise while preserving speech clarity.

Users can control volume, switch programs, and manage phone calls directly via the onboard controls or through the free HearLink app for iOS and Android. The app also includes a Find My Hearing Aid feature, streaming equalizer, journal for tracking wear goals, and optional remote care for virtual provider appointments. Voice alerts (Notify Me) in nine languages provide low-battery warnings. Available accessories sold separately include the AudioClip remote microphone for noisy environments, a TV Adaptor for direct television audio streaming, and a Remote Control for users who prefer not to use a smartphone app.