Bose Ultra Open Earbuds: price & specs

The official Bose.com product page (ULT-HEADPHONEOPN) confirmed verbatim: price "$299.00", "Up to 7 hours of play time" (battery buds (hr)=7), "IPX4 rating for water resistance" (IP rating=IPX4), "Open-ear design", "Noise Cancelling No" (anc=false), "up to an extra 19.5 hours of battery life in the charging case" (battery case (hr)=19.5), and Bluetooth multipoint connectivity; it publishes no driver size (only "Dynamic Driver"), Bluetooth version, per-bud weight, or release date. The Amazon retailer listing (Bose Store, Model Number 881046-0010, Model Name "Bose Ultra Open Earbuds, Black") corroborates the exact model and its product-information table states verbatim "Bluetooth Version 5.3" (bluetooth=5.3), "Noise Control None" (anc=false), "WATER RESISTANCE WITH IPX4", and "Carrying Case Battery Average Life 19.5 Hours" (battery case (hr)=19.5). wireless charging=false because the included case is charged via the bundled "USB-C (A to C) cable" ("USB-C cable included to charge the case"), with wireless charging offered only as a separately sold Wireless Charging Case Cover accessory ($49.00). driver (mm), codecs, weight per bud (g), and release are left blank: no fetched page states them (Amazon's "60 Grams" is total item weight, not per-bud, and no launch date appears on either page). Note: Amazon's Bose-supplied specs list 7.5h buds / Product Description 7.5h, but the manufacturer product page states 7h, so battery buds (hr) uses the manufacturer page's 7.