Durable to use: Aluminum alloy shell, strong and durable, resistant to scratches, dust, etc Stable connection: Adopts Bluetooth 5.3+DSP dual-chip decoding, two external 2.4G Bluetooth antennas, and the transmission distance can reach 30-50 meters, making the compatibility strong and the Bluetooth connection more stable. Professional-grade DSP chip allows independent control of high and low bass Three-in-one function: Bluetooth reception (RX), Bluetooth transmission (TX), microphone singing Two-device reception: It can support connecting two mobile Bluetooth to listen to music RGB breathing light: Multi-color flashing gradient light, so you can quickly find it in the dark Multi-interface design: Built-in digital signal to analog chip, support digital optical fiber, coaxial, AUX, RCA interface High-quality sound effects: Support multiple lossless decoding formats AAC/SBC, better sound quality Built-in 1200mAh rechargeable lithium battery: After 1.5 hours of full charge, supports 8 hours of music, standby life of up to 30 days Music playback: Support U disk playback and transmission, support 5~8 meters infrared remote control, all kinds of functions are available Support singing: With 6.5mm microphone interface, support connecting the microphone to sing Simple connection: no tedious driver and APP download Specification: Bluetooth version: Bluetooth V5.3 Battery capacity: 3.7V/1000mAh (UN38.3) Remote control battery capacity: 2*AAA battery, totally 150mAh Charging time: About 1.5 hours Using time: Listen to music for about 8 hours and stand by for 30 days Transmission range: 10-20m (barrier-free) Interface: 3.5mm AUX/2RCA/USB/Coaxial/Optical/Type-C Input: DC 5V-1000mA (MAX) Support protocol: A2DP/AVRCP/HFP/SBC U disk/TF music format: MP3/APE/FLAC/WAV/WMA/ALAC/M4A/AMR Using method: Drive free/infrared remote control Material: Aluminum Functions: Bluetooth receiving, Bluetooth transmitting, U disk playback (maximum support 128G), RGB phantom display, sing Support devices: All kinds of speakers, desktop computers, laptops, TVs, power amplifiers, projectors