الوثائق والبرامج
معارف
- BackBeat 903+: How to Reconnect
- BackBeat 903+: Button Functions
- BackBeat 903+: Product Specifications
- BackBeat 903+ Online Quick Start Guide
- BackBeat 903+: Indicator Lights
- BackBeat 903+ Voice Alerts
- BackBeat 903/906/903+ and Exposure to Moisture
- BackBeat 903/906: Range
- BackBeat 903/903+: How to Pair
- BackBeat 903/906: Basic Controls
الضمان
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Limited Warranty Terms -
خدمة ضمان سماعة الرأس