{"type":"firestarter.listing","listing":{"id":"lst_T2i0vYlA","product_name":"HiBy W4","category":"PORTABLE DAC/AMP","description":"\n\n\nDual-Core, Dual-Mode Versatility\nHiBy W4 is an all-in-one portable Hi-Fi solution that seamlessly switches between Bluetooth receiver mode and USB audio mode. Whether your music source is wireless or wired, W4 delivers powerful headphone amplification and uncompromising sound quality in a single compact device—perfect for everyday carry.\n\n\nUnCharge Mode for Cleaner USB Audio\nA dedicated UnCharge lever allows W4 to run entirely on its internal battery even when connected via USB. This innovative design reduces background noise and phase interference from external power sources, resulting in purer sound while also minimizing power draw from your smartphone or computer.\n\n\n2-Inch Full-Color Touchscreen Control\nUnlike traditional dongles or Bluetooth receivers, W4 features a 2-inch color touchscreen for intuitive control. Playback, pairing, filters, and system settings can be accessed directly with simple taps, delivering a uniquely user-friendly experience in a portable Hi-Fi device.\n\n\nAlbum Art Display for Emotional Immersion\nIn Bluetooth mode, W4 supports album art display, giving you a clear visual of track information while enhancing emotional engagement during listening sessions.\n\n\nQualcomm QCC5181 Bluetooth 5.4 Platform\nPowered by the flagship Qualcomm QCC5181 Bluetooth chip, W4 supports Bluetooth 5.4 for faster pairing, stronger stability, and improved resistance to interference. Advanced low-energy Bluetooth audio technology delivers higher sound quality without increasing power consumption—ideal for music, calls, and gaming.\n\n\nFull Hi-Res Bluetooth Codec Support\nHiBy W4 supports Snapdragon Sound and all major high-bitrate Bluetooth codecs, including aptX Adaptive, aptX Lossless, aptX HD, aptX, LDAC, AAC, and SBC. Enjoy high-resolution wireless audio up to 24bit/96kHz across Android, iOS, and Windows platforms.\n\n\nDual CS43198 DAC Architecture\nW4 integrates dual Cirrus Logic CS43198 DAC chips, independently decoding left and right channels. 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Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_T2i0vYlA' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy HiBy W4' and a budget_max comfortably above $99.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}