[DETAIL] Bluetooth Speaker Home Theater Sound System Mini Speakers Desktop Computer MP3 Player Audio for PC Phone Subwoofer Multi-media 1. Basic parameters of three-speaker speaker Speaker type: computer speaker; Bluetooth version: V5.0+BR+EDR+BLE; Resolution: �� 35dB; Frequency response range: 30HZ-15KHZ; Number of speakers: 3W * 1+2W * 2; Horn size: 3 inches * 2 inches * 2; Horn power: 3W * 1+2W * 2; Voltage: USB/DC5V; Current: 600mA; Channel: 2.1 channels; Bluetooth transmission distance: barrier-free 10m; Line length: 1.2 m; Support protocol: A2DP 1.0/AVRCP 1.5/AVDTP 1.0/AVCTP 1.4/HFP 1.5/GAVDP 1.0; Buttons: multi-function volume adjusting knob, tweeter adjusting knob, bass adjusting knob; LED indicator: main engine decorative blue light * 1, auxiliary engine decorative blue light * 2; Speaker weight: 720g; Speaker size (large): 96 * 116 * 128mm; Speaker size (small): 60 * 60 * 70mm; 2. Basic parameters of double-speaker speaker: Speaker type: computer speaker; Resolution: �� 35dB; Frequency response range: 30HZ-15KHZ; Number of speakers: 2; Horn size: 2 inches * 2; Horn power: 3W * 2; Voltage: USB/DC5V; Current: 600mA; Channel: 2.1 channels; Bluetooth transmission distance: barrier-free 10m; Line length: 1.25 m; Key: dial rotation volume+/-; LED indicator: packaging instructions with two decorative lights; [ATTRIBUTES] - Hign-concerned Chemical: None - Input/Output: USB - Battery Capacity[mAh]: 600 - Hign-concerned Chemical: None - Input/Output: USB - Battery Capacity[mAh]: 600 - Maximum wireless range[m]: <10m - Touch Screen: No - Sound Mode: Stereo Sound Mode,Standard Mode - Category: Speakers - Use: Home - Sensivity: 75dB - Bluetooth Version: Other - Input Power(W): <25 W - Active Noise-Cancellation: PASSIVE - Voice Control: No - Frequency Range: 30Hz-10KHz - Display Screen: No - Waterproof: No - Support APP: No - Material: Plastic - Playback Function: Other - Inbox adaptor: No - Intelligent Personal Assistant: None - Built-in Microphone: No - Audio Crossover: Full-Range - Number of Loudspeaker Enclosure: 2 - Power Source: USB - Channels: 3 (2.1) - Battery: Yes - Communication: Induction - Speaker Type: Computer Speaker - Cabinet Material: Plastic - Brand Name: TDX - Power Source: USB - Origin: Mainland China - Remote Control: No - Output Voltage: 25 W - Support Memory Card: Yes - Certification: CE,FCC,RoHS,UL - application 1: computer speaker - application 2: Desktop Computer - application 3: Mini Stereo Altavoces - application 4: PC Speaker - application 5: Bluetooth Speaker Home Theater Sound - application 6: Desktop Computer MP3 Player Audio - application 7: for PC Phone Subwoofer Multi-media