Double the Impact of Every Audio Impression
Kalithea Media synchronizes clickable display banners with your audio spots -- turning passive listeners into active engagers and delivering 3.2x higher CTR than audio alone.
Synchronized audio-visual delivery across streaming platforms
An audio ad without a visual companion is a missed opportunity. When your spot plays on Spotify, Deezer, or digital radio, the listener's screen sits idle -- unless you activate a companion banner. Kalithea Media ensures that every audio impression is paired with a synchronized, clickable visual that reinforces your brand and drives immediate action.
As an independent programmatic agency, we manage companion ads across DV360, The Trade Desk, Xandr, and specialized audio exchanges, selecting the inventory that delivers the best CPM or CPC for your objectives. Our RTB expertise means we bid on audio + companion bundles in real time, optimizing for completion rate and click-through simultaneously -- something walled-garden platforms cannot match.
From creative alignment between audio and visual assets to unified cross-format reporting, we handle the complexity so you get a cohesive brand experience that maximizes both recall and response. Whether you buy on CPM, CPC, or CPA, every dollar is tracked from impression to conversion.

What Makes Our Companion Ads Perform
Synchronized Audio-Visual Delivery
Our RTB platform precisely times banner display to the millisecond your audio spot begins, creating a unified multi-sensory experience across Spotify, Deezer, and digital radio networks.
- Real-time sync between audio and display creatives
- Support for Spotify, Deezer, and digital radio networks
- Consistent branding across audio and visual touchpoints
Click-Through Performance
We transform passive audio listeners into active engagers with clickable companion banners that direct users to landing pages, app stores, or product catalogs -- tracked end-to-end with CPC and CPA attribution.
- Deep-link support for mobile apps
- Custom landing page integration and tracking
Multi-DSP Buying & CPM Optimization
We activate companion ads across DV360, The Trade Desk, Xandr, and Amazon DSP to secure the best CPM on bundled audio + display placements -- maximizing your reach without overpaying.
Cross-Format Attribution
Unified reporting ties together audio completion, banner viewability, click-through rates, and downstream conversions -- giving you a single view of performance across both formats.
Companion Ad Formats We Activate

- 300x250 and 728x90 display units
- Displayed during audio spot playback
- Brand-safe, viewable placements
Standard Companion Banners

- Rich media banners with animation
- Product carousels and expandable units
- Enhanced click-through and engagement rates
Interactive Companions

- Full-width mobile banners synced to audio
- Tap-to-action for app installs and offers
- Optimized for in-app streaming environments
Mobile Companion Overlay
3.2x
Higher CTR versus standalone audio campaigns
68%
Increase in brand recall with audio + visual
90%+
Companion banner viewability across platforms
2x
Engagement lift from synchronized delivery
