Yamaha WX021 MusicCast 21 Wireless Speaker

• Fits Your Space and Your Décor
• Three Preset Buttons Give One-Touch Access to Your Music
• Stereo
  Use two for powerful wireless stereo sound.
• Add a MusicCast SUB 100
  Add a MusicCast SUB 100 subwoofer for a 2.1-channel stereo system.
• Wireless Surround
  Add a pair to a MusicCast Surround-capable AV receiver to provide wireless surrounds for a 5.1-channel home theater system.
• MusicCast Wireless Multi-Room
  Expand your MusicCast wireless multi-room setup. Stream and control multiple rooms with the MusicCast app for iOS and Android™.
• Wireless Surround
  Combine a MusicCast Surround-capable AV receiver with two MusicCast 20 speakers, and enjoy the amazing convenience of creating a home theater with wireless rear speakers.
• Hands-Free Operation with Amazon Alexa Voice Control
  Alexa, Amazon's cloud-based voice service that can be used to control all kinds of devices, can now control MusicCast products. Kick back on your couch and ask Alexa to play music on your MusicCast 20 wireless speaker without lifting a finger.
• The Small Speaker with Big Sound
  Designed to be small enough to work in any space without compromising sound quality. Amazing sound comes from an aluminum cone woofer and dual passive radiators.
• Wall Mountable
  Mounts conveniently on a wall with a 1/4"-20 screw.

Specifications:

• Maximum Output Power: 40 W
• MusicCast Subwoofer Capable: Yes (coming September 2018)
• Inputs: Ethernet
• Wireless:
  • AirPlay®
  • Bluetooth®
  • Wi-Fi® (2.4G / 5G (802.11a / b / g/ n / ac))
• USB: Service only
• Sound Modes: Standard, Bass Booster
• High-Res Audio Codec: WAV, FLAC, AIFF 192 kHz / 24-bit
• Speaker Unit:
  • 3-1/2" Aluminum cone woofer
  • 1" Soft dome tweeter
  • Dual passive radiators
• Alarm: Yes