I'm selling a Google Home Mini (Chalk color) for $25. Specs are copied below. The device has a mute button. So if you don't like the Google Assistant feature, you can turn on the mute button and use it as a speaker.

Audio
** Far-field voice recognition supports hands-free use
** 360-degree sound with 40mm driver
** Chromecast and Chromecast Audio built-in
** Bluetooth ® support

Materials
** Durable fabric top
** Non-skid silicon base
** Plastic housings created using recycled material

Supported Audio Formats
** HE-AAC
** LC-AAC
** MP3
** Vorbis
** WAV (LPCM)
** Opus
** FLAC with support for high-resolution streams (24-bit/96 kHz)

Wireless network
** 802.11b/g/n/ac (2.4 GHz or 5 GHz) Wi-Fi
** Bluetooth® 4.1
**** Supported Bluetooth profiles
****** AVRCP controller
****** AVRCP target
****** A2DP sink
****** A2DP source
****** GATT server
****** GAP

Sensors and Microphones
** Capacitive touch controls
** 2 far-field microphones

Dimensions
** Diameter: 3.86 in (98 mm)
** Height: 1.65 in (42 mm)
** Power cable: 4.92 ft (1.5 m)