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Identifies and describes all physical buttons and ports on the device.
Details the functionality and use of the Android operating system on the M15.
Explains the dedicated music playback mode, disabling third-party apps.
Describes how to use the M15 as a USB Digital-to-Analog Converter for computers.
Explains how to use the M15 as a Bluetooth receiver for audio playback.
Guides on how to update the device's firmware via online or local methods.
Steps to pair and transmit audio to Bluetooth devices like headphones or speakers.
How to choose between different audio output ports like PO, LO, and SPDIF.
Adjusting the headphone amplifier gain for optimal volume and sound.
Choosing Bluetooth audio codecs (LDAC, aptX) for optimal sound quality.
Introduction to the FiiO Music app and its initial guide.
Overview of the interface shown during music playback, including controls and info.
Using the graphic equalizer to adjust audio sound profiles and presets.
General| Battery Capacity | 7490 mAh |
|---|---|
| Storage | 64GB internal, expandable via microSD |
| Operating System | Android 7.0 |
| Bluetooth | Bluetooth 4.2 |
| Outputs | 3.5mm single-ended, 2.5mm balanced, 4.4mm balanced |
| USB | USB Type-C |
| Dimensions | 134 x 75 x 18 mm |
| Weight | 310 g |
| RAM | 3GB |
| Display | 5.15-inch IPS LCD |
| Wi-Fi | 802.11 b/g/n/ac |
| Output Power | 800mW @ 32Ω |
| THD+N | <0.0004% (1kHz/32Ω) |
| Frequency Response | 5 Hz - 80 kHz |
| Signal-to-Noise Ratio | 122 dB |
| Output Impedance | <1 Ω |
| Playback Time | Up to 15 hours |
| Supported Formats | DSD, FLAC, ALAC, WAV, AIFF, APE, MP3, AAC, WMA, OGG |
| DAC | AK4499EQ x2 |
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