Logitech s315i Rechargeable iPod speakers - Designed by Design Partners - YouTube
30Pin Bluetooth 5.0 A2DP Adapter Mini Wireless 30 Pin Receiver For Logitech S135i S315i S715i S 0001 Pure Fi Anywhere 2 Speaker|Speaker Accessories| - AliExpress
Logitech Rechargeable Speaker S315i Model S-00078 for iPhone and iPod - Works | eBay
Review: Logitech Rechargeable Speaker S315i for iPod + iPhone