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Runner 40

Runner 40

Designed by runners for runners! Incredible sound in a small, secure bud

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Certified carbon neutral
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1-Year Warranty
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$39.99
$39.99 $39.99
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  • Built For Athletes: Our hook design keeps the earbuds securely in your ears. Focus on your workout, not your earbuds
  • Great For Small Ears: These earbuds are made to adapt to ears of all sizes
  • Waterproof: Power through rain, sweat, and even showers. The earbuds use internal nano-coating to create IPX7 waterproofing.
  • 30 Hours of Battery Life: Months of workouts on one charge! The earbuds can play 6 hours of music, and the charging case can power 24 more hours!
  • Bass Mode: Easily switch between Back Bay's Signature Sound and our new Bass Mode
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TECHNICAL SPECIFICATIONS

-BT Version: 5.2

-Driver Sensitivity: 110±3dB（IEC-711,1kHz @1mW）

-Output Maximum: 5mW

-Impedance: 23Ω±15%

-Total Harmonic Distortion: ≤3%（@1000Hz

-Codecs Supported: AAC, SBC

-Profiles Supported: HFP, HSP, A2DP, AVCP

-Frequency Range: 20Hz -20kHZ

-Driver Size: φ10mm

-Wireless Range: 30 feet

-Microphone Type: Environmental Noise Cancellation, Omni-directional

-Microphone Sensitivity: -38±1dB（@1kHz ref 1V/Pa）

-Waterproof Rating: IPX-7

-Battery Type: Lithium Ion

-Battery Voltage 3.7 V

-Earphone Playtime: 6 hours

-Total Playtime with Charging Case: 30 Hours

-Recharge Time: About 1.5 Hours

-Earbud Battery Capacity: 50mAh * 2

-Charging Case Battery Capacity: 650mAh

-Charging Port: USB-C

Download User Manual