Outdoor Waterproof Vehicle-mounted Portable Card Bluetooth Speaker

Product information: Bluetooth specification: Bluetooth5.0 Bluetooth protocol: supports L2CAP/A2DP(AVCTP/AVDTP/AVRCP) to receive stereo audio signals. The protocol allows you to control the upper and lower output operations of the audio transmitter; support HSP/HFP(Handsfree profile), with hands-free function, can carry out voice communication Wireless transmission range: 10m Audio Noise ratio: ≥ 90db Battery capacity: 1200mAh Built-in voltage: 3.7V Normal volume playback: 3h to 4H Speak