Original Lenovo K3 Pro Bluetooth Wireless Portable Speaker Mini Outdoor Loudspeaker Wireless Column 3D Stereo Music Surround Bas

High-concerned chemical: None. Input/Output: USB. Sound Mode: 3D Surround Sound Mode. Category: Speakers. Use: Home. Sabwoofer cabinet material: Metal. Woofer/Widerange material: Metal. Mid-range material: Metal. Tweeter material: Metal. Tweeter type: AMT. Acoustic enclosure: Other. Sensivity: 82dB. Control: Volume control. Bluetooth Version: 5.0. Input Power(W: Total Harmonic Distortion: 0.2%. Active Noise-Cancellation: Active. Impedance: 3-6 Ohm. Voice Control: No. Frequency Range: 20Hz-2KHz. Display Screen: No. Waterproof: No. Support APP: Yes. Material: Plastic. Playback Function: MP3. Inbox adaptor: No. Support Apt-x: No. Intelligent Personal Assistant: Siri. Display Screen: No. Built-in Microphone: No. Audio Crossover: Two-Way. Number of Loudspeaker Enclosure: 1. Power Source: Battery. PMPO: 3W. Channels: 2 2.0). Feature: Phone Function. Battery: Yes. Communication: Induction. Speaker Type: Portable. Cabinet Material: Plastic. Brand Name: Lenovo. Power Source: USB. Origin: Mainla