This is a home cinema system from Sony which connects the subwoofer without a cord. The system is connected with an optical cable.
From Sony Store
Sony 2.1CH Soundbar With Powerful Wireless Subwoofer | Ht-S400 / Ht-Sd40
Tech For Less
Sony HT-S400 2.1 Bluetooth Sound Bar Speaker - 330 W RMS - Dolby Digital, Virtual Surround Sound, Dolby Dual Mono - Wireless LAN - USB - HDMI
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