Duet 50

Duet 50 vs Duet 50 Pro vs Duet 50 Slim



  • Longer Battery Life Than Apple Airpods®: With a total of 40 hours of battery life, the Duet 50's are in a class of their own! The earbuds can play 8 hours of music in a single sitting, and the charging case can power 32 more hours of music on the go.
  • Classic American Hi-Fi Sound: We tune all our headphones in our Boston headquarters to produce the classic “American Hi-Fi Sound” strong bass, a relaxed, natural midrange and crisp highs.
  • Sweatproof: Completely unaffected by sweat or rain, the earbuds use internal nano-coating to create IPX-5 water resistance.
  • Wireless Controls: Answer phone calls and control your music without ever touching your phone! You can trigger Siri or Google Assistant to handle hands-free tasks.
  • Built-in Microphone: Take hands-free phone calls on the go!


*AirPods is a registered trademark of Apple Inc. Back Bay Audio is not affiliated with Apple Inc.

Customer Reviews

Based on 500 reviews Write a review

Technical Specifications

-BT Version: 5.0

-Driver Sensitivity:  95±3dB(IEC-711,1kHz @1mW)

-Output Maximum:  5mW

-Impedance:  16Ω±15%

-Total Harmonic Distortion: ≤5%(@1000Hz)

-Codecs Supported: APTX, AAC, SBC

-Profiles Supported: HFP, HSP, A2DP, AVCP

-Frequency Range: 20Hz - 20kHZ

-Driver Size: φ6mm

-Frequency Band: 2.4 GHz

-Wireless Range: 30 feet

-Microphone Type: MEMS, omni directional

-Microphone Sensitivity: -42±3dB(@1kHz ref 1V/Pa)

-Waterproof Rating: IPX-5

-Battery Type: Lithium Ion

-Battery Voltage 3.7 V

-Earphone Playtime: 8 hours

-Total Playtime with Charging Case: 40 Hours

-Recharge Time: About 1.5 Hours

-Earbud Battery Capacity:  50mAh * 2

-Charging Case Battery Capacity: 480mAh


Download User Manual

Related Items