1. Built-in NFC sensor chip, cell phone contact connection2. Rich interface, strong compatibility, support all kinds of audio interface R / L interface, AUX interface, U disk playback, TF card3. 5-8 meters infrared remote control, more convenient operation4. RX receiving mode, bluetooth wired speakers into Bluetooth in seconds, open your home theater like stereo sound quality atmosphere5. Amplifier device to let, cell phone connection is more intelligent, to achieve long-distance control of music play/pause/volume adjustment, etc6. 500mAh high-capacity battery with high endurance and low power consumption7. 30m range connection, long-distance barrier-free transmission, external 2.4G high-frequency Bluetooth antenna, signal stability without lagging8. Bluetooth 5.1 technology, compared with other chips, lower power consumption, faster transmission, anti-interference, stable signalParameters:1. Product material: ABS2. Bluetooth version: V5.13. Input power supply: DC 5V4. Transmission distance: 30m5. Battery capacity: 500mAh6. Charging interface: Тyре-C / USB-C7. Product interface: AUX interface, RCA red and white interface, U disk playback, TF card playback8. Remote control: with infrared remote control (built-in CR2025 button battery)9. Size: 90 x 58 x 21mm10. Weight: about 200gSpecification: Package Weight One Package Weight 0.21kgs / 0.47lb One Package Size 13cm * 8cm * 5cm / 5.12inch * 3.15inch * 1.97inch Qty per Carton 100 Carton Weight 21.00kgs / 46.30lb Carton Size 49cm * 39cm * 48cm / 19.29inch * 15.35inch * 18.9inch Loading Container 20GP: 290 cartons * 100 pcs = 29000 pcs40HQ: 674 cartons * 100 pcs = 67400 pcs