Aptoyu via Amazon has 10W Outdoor Dual-Driver Bluetooth Wireless Speaker w/Mic & Rechargeable Battery on sale for $24.99 - $10.11 w/ promotional code MZAXL9VA
= $14.88. Shipping is free with prime.
- Two powerful 5W speaker drivers, similar experience a full-bodies stereo sound with punching bass and powerful volume.
- Built-in rechargeable battery supports up to 24 hours of playtime at 30% volume on a single charge.
- Built-in microphone: Use this wireless Bluetooth speaker as a speakerphone, so you can enjoy hands-free calling.
- Support TF Card / AUX / USB Music Play
- 33Ft Bluetooth Transmission
Previous FP here