Micro SD card speed is greatly affected by card reader, adapter, USB port etc. Low quality device will 100% slow down card speed. The Micro SD card speed is based on internal testing; performance may be lower depending on host device, interface, usage conditions and other factors.
eBay
Mini Sleeping Bluetooth Speaker Rechargeable White Noise Sleep Aid Soundbar Wireless Music Player Support TF Card Timed Shutdow
Aliexpress UK
These are all current models, not End Of Life products. Top Quality. - The product must remain unused. - The product must remain sealed. Cancelling your order / Changing your mind.
eBay
TD-V26 Portable Mini Bluetooth Speaker with Screen FM Radio MP3 Player Support TF Card/AUX Stereo - Wireless Music Player
Aliexpress UK
Low quality device will 100% slow down card speed,1MB=1000KB.
eBay
Mini Fabric Speaker Portable Wireless Soundbar Bluetooth 5.0 Outdoor Indoor Sport HIFI Loudspeaker J Support TF Card FM L Radio
Aliexpress UK
Low quality device will 100% slow down card speed,1MB=1000KB.
eBay
Speaker TG506 Portable Mini Wireless Soundbar Bluetooth 5.0 Outdoor Indoor HIFI Loudspeaker Support TF Card FM Radio Waterproof
Aliexpress UK
1 × SD Adapter. IncludesSD Adapter for wider device compatibility. Key Features. Available Storage Capacities. (Select your required size). Plug & Play ?. ready for use in compatible devices. What's Included.
eBay
Rockmia EBS-303 5W Mini Portable Speaker Bluetooth 5.0 Fabric Mesh Subwoofer with Magnet Function Waterproof TF Card Player Gift
Aliexpress UK
Ideal for Android Smartphones and Tablets: SanDisk Ultra microSDHC and microSDXC UHS-I card cards are compatible with Android smartphones and tablets.
eBay
Speaker TG506 Portable Mini Wireless Soundbar Bluetooth 5.0 Outdoor Indoor HIFI Loudspeaker Support TF Card FM Radio Waterproof
Aliexpress UK
Kingston microSD Card – Multiple Capacities (32GB / 64GB / 128GB / 256GB). Available Sizes: 32GB, 64GB, 128GB, 256GB. Choose the capacity that fits your needs. Class 10 UHS-I Performance – Fast read speeds for smooth recording and data transfer.
eBay
ZEALOT-S32PRO 15W Portable Bluetooth 5.2 Speaker Outdoor Waterproof Wireless TWS Mini Column Box Speaker Outdoor TF Card
Aliexpress UK
Capacity Notes：128M=approx. 110M-115M256M=approx. Storage temperature： - 40°F to 185°F (- 40°C to 85°C). Size:49 18 10mmweight: 14.2g.
eBay
New Mini Portable Car Audio A9 Dazzling Crack LED Wireless Bluetooth 4.1 Subwoofer Speaker TF Card
Aliexpress UK