Bluetooth speaker helicopter creative portable subwoofer Mini cute outdoor wireless aircraft sound

Material: ABS engineering plastic + silica gel Built in battery: 3.7v-4.2v 400mah Charging current: 5v0.8a (max) about 1.5h Charging mode: Micro USB 5v1a Endurance: more than 6 hours Bluetooth version: 5.0 Transmission distance: > 50m Volume adjustment mode: external Potentiometer / mobile phone (both can adjust the volume synchronously) Frequency response range: 80hz-20khz Product size: 71 * 54 * 68mm Product weight: 120g Package size: 92 * 90 * 60MM Packing quantity: 60 Function: long press the key, turn on the speaker power, the blue light flashes, enter the pairing mode, turn on the Bluetooth function of the mobile phone, find the j09 pairing successfully, and the blue light is always on. 1. Bluetooth play function: operate related functions on the mobile phone. The buttons on the speaker have pause and play functions. 2. Intercommunication function: two way voice call. By turning the body knob, you can manually adjust the output volume (increase clockwise and decrease counterclockwise), or you can directly adjust the volume on mobile phones and other devices