Highlights: Wireless Transmission rang-up to 10 meter Speaker Drive Size: 3 inch Output power: 5w Frequency Response: 100hZ -20khz Signal to noise ratio: 85dB FM Scan rang: 87.5-108.0MHz Battery Capacity : 12mAh Max Memory Support (USB/SD): 32GB Playtime : up tp 1-2 hours at 75% Volume Charging Time: 2-3 hours With flashlight Size: 11cm x 12cm x 16cm Product Description: Wireless Connectivity Support USB/TF card Rechargeable Battery Karaoke Function Wireless Stereo Twin Speaker Function The connection Both FM Radio, Search and Record The FM Frequency Automatically What’s in the box: 1 x Speaker Weight: 0.3 SKU: 201014153355