IP3635L Features Bluetooth wireless speaker giving you unlimited music fun Supports hands-free call and redial function Can directly play music from an external TF card USB audio card function Supports audio input Memory ability for FM channel， volume and TF song name General Specs Bluetooth v2.1+EDR (RDA chip) Color Blue Rated Power 3W Frequency Response 150-20KHz Signal/Noise Ratio 65 dB External Sound Input 350-450mV FM Frequency 87.5-108.0MHz Bluetooth Distance ≥ 25 m (no obstacle) Low Battery Prompt Yes Degree of Distortion 0.1% (3.7v 0.5W) Battery Type 3.7v lithium battery Charging Method Charge with USB cable (5v/500mA) Adjustment Method Keys Dimensions 55 x 60 mm Speaker Specifications 52， 16-core， dual-magnet Shell Material ABS plastic， fuel injection and zinc alloy Weight 152 g Package Details Weight: 267.50 g Size: 6.3*6.3*7.5 cm Package Includes * DSLR Lens Shaped Super Bass Bluetooth Wireless Speaker with Card Reader & FM Radio