HM11 Retro Bluetooth Mini Wireless Smart Speaker Features 1. 360-degree surround sound, high-fidelity sound quality, and highly accurate sound reproduction. 2. Hi-Fi-grade sound quality, 3W speakers, and a high-fidelity chip ensure unparalleled listening experience. 3. Multifunctional speaker: Supports Bluetooth, SD card playback, USB playback, and AUX audio playback. 4. Bluetooth 5.0 for faster transmission, lower power consumption, strong anti-interference capabilities, and easy connection. 5. Once connected to your phone via Bluetooth, it supports one-touch hands-free call reception. Specifications 1. Bluetooth Solution: JL5.0 2. Speaker: 3W 3. Battery: 3.7V 400mAh 4. Receiving Range: 10 meters (range varies depending on environment) 5. Charging Time: 2 hours 6. Playback Time: 2-6 hours 7. Frequency Response: 50Hz-20kHz 8. Signal-to-Noise Ratio: Greater than or equal to 90dB 9. Material: ABS plastic with electroplating