Description: Loudspeaker: Large volume, biological diaphragm amplification, the volume is 80 times stronger. Dual speakers and dual bass, stereo structure omnidirectional sound effect. Covers an area of 60 square meters. 5.0: No lag, continuous connection. Upgrade DSP chip, intelligent noise reduction, reduce noise. Configure the telescopic antenna, automatically search and save the radio station automatically. LED display: 3000mAh rechargeable lithium battery, battery life up to 15 days. , U disk, TF card, three modes to choose Small and thin: matte speaker, dual-purpose, wired and wireless detachable headset, easy to travel. Helps protect your throat and reduce burning/pain/hoarseness caused by shouting. A variety of wearing methods: head-mounted, hanging neck. Can be hung at the waist, slanted over the shoulders, and tied around the waist. Specification: : 5.0 Frequency response range: 100HZ-20KHZ Input: DC 5V/1A Output power: 5W Speaker Impedance: 2Ω Signal-to-noise ratio: ≥75dB Expandable Storage: 32GB Effective distance: 10 meters Battery capacity: 3000mAh Number of speakers: 2 Supported Protocols: for HSP, for HFP, for A2DP, for AVRCP, for AVRTP. Supported Audio decoding: for SBC Size Chart: 78x28x99mm/3.07x1.10x3.90inch Package Includes: 1 Piece Megaphone Speaker 1 Piece Charging cable 1 Piece Manual Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!