Sony bring you this Bluetooth speaker which might be the perfect choice for you. The wireless communication uses Bluetooth for easy pairing with other devices.
From Amazon
Sony SRS-XB23 - Super-Portable, Powerful and Durable, Waterproof, Wireless Bluetooth Speaker with EXTRA BASS – Black (Renewed)
Currys
SONY SRS-XB23 Portable Bluetooth Speaker - Black, Black
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