-Version: JL V5.4
-Transmission range: ≤10M
-Speaker: 40mm | 32Ω | 100dB±3DB
-Working time: ≤18H (LED off) at max volume
≤12H (LED on) at max volume
-Charging time: ≤2H
-Standby time: ≤120H
-Battery：400mAh
-Frequency: 20HZ-20KHZ
