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Ultra Open Earbuds (2nd Gen) MOMENTUM True Wireless 5
LAUNCH DATE
Announced 2026, September 17 2026, August 20
Released 2026-10-01 2026-09-03
Status Available. Released 2026-10-01 Available. Released 2026-09-03
BODY
Build Polycarbonate and silicone; metallic cap with beveled finish; flex-joint cuff —
Dimensions Earbud: 18.9 x 17.7 x 27.7 mm; Case: 47.5 x 26.8 x 66.0 mm Case with earbuds: 67.2 x 48.4 x 25.0 mm
IP Rating IPX4 IP54 (earbuds only)
Type Open-ear cuff true wireless earbuds In-ear true wireless earbuds
Weight 5.9 g (single earbud), 49.9 g (case) 7 g (single earbud), 55 g (charging case), 62 g (total)
SOUND
ANC No (open-ear) Yes, hybrid adaptive ANC with adaptive anti-wind
Codecs SBC, AAC, aptX Adaptive (Snapdragon Sound) SBC, AAC, aptX, aptX Adaptive, aptX Lossless
Driver Improved dynamic driver (deeper bass, higher volume), Bose OpenAudio technology 7 mm TrueResponse dynamic driver
Features Auto Volume, 3-band EQ (Bose app) 8-band graphic EQ, sound personalization (developed with Fraunhofer Institute), Dolby Atmos with head tracking, low-latency gaming mode
Frequency response — 5 Hz - 21 kHz
Hi-Res — Up to 24-bit/96 kHz (lossless)
Microphones 2 microphones, Bose SpeechClarity voice isolation 4 mics per earbud incl. bone-conduction mic; AI and beamforming de-noising
Spatial Audio Immersive Audio; Cinema Mode with Bose TrueSpatial head tracking —
COMMUNICATION
App — Sennheiser Smart Control Plus
Bluetooth 5.4, range up to 30 ft (9 m) 6.0, class 1
Features Google Fast Pair Google Fast Pair, Microsoft Swift Pair
Multipoint Yes, two devices Yes
BATTERY
Capacity — 72 mAh (each earbud), 760 mAh (case)
Charging Type USB-C, wireless charging case; full charge 1 hour Qi wireless charging (v2.1); full charge approx. 1.5 hours
Earbuds Up to 9 hours (up to 5 hours with Immersive Audio) Up to 12 hours (ANC off), up to 6 hours (ANC on)
Quick Charge 10 min = up to 2 hours 8 min = 1 hour playback
Standby Up to 20 hours (connected, no audio) —
Type — Li-Ion, user-replaceable
With Case Up to 19.5 additional hours (28.5 hours total) Up to 40 hours
ADDITIONAL INFORMATION
Colors Black, White Smoke, Cherry Chocolate, Olive Green, Sky Pink (last three limited edition) Graphite, Cream, Copper, Lavender
Compatibility Any Bluetooth-enabled phone, tablet or computer; preorders from 19 Sep 2026 —
In the Box Earbuds, charging case, quick start guide, safety sheet (no power adapter) —
Launch Price USD 299 (Standard) — launch, 2026-09-17 USD 299.95 (Standard) — launch, 2026-08-20
Notes Personal Surround support with Bose Smart Soundbars removed versus 1st Gen —
Price in Nigeria ₦418,600 (estimate, converted from US launch price) ₦419,900 (estimate, converted from US launch price)