The stylishly portable sports speaker is compatible with both flash memory and TF Card memory, as well as an FM radio receiver and AUX mode from the speakers for connecting to a smartphone. General computer and music player Via a 3.5mm jack cable
The 40mm speaker provides crystal clear stereo sound clarity.

• Type: Portable Speaker (No Bluetooth)
• Compatible: Play MP3 music files from SD-card, players through Line-in, USB Flash drives

Specification:

• Speaker Size: 40 mm diameter
• Output Power: 3W
• Supported Frequency Range: 100Hz – 18000Hz
• Supports Resistance: 4 ohms
• Battery Charging Box: Mini USB
• AUX: 3.5mm standard
• Supported Music File: MP3
• Duration: 3-4 hours, depending on open volume and usage
• Charging Time: About 2-3 hours

Set includes:

• 1 Speaker
• One Battery Charger (Micro USB)
• Cable from Headphone Socket to 1 Line Speaker (AUX)