ลำโพงบลูทูธ Go3 ฟรีกระเป๋าลำโพง ลำโพงไร้สายแบบพกพากันน้ำ Bluetooth Speaker Go 3 ของเเท้100%Transducer：43x47 mm/1.5"Frequency response range：110Hz- 20kHzSignal to noise ratio：>85dBOutput Power：4.2 W RMSBluetooth version：5.1Bluetooth transmission power：≤8dBm(EIRP)Bluetooth transmission modulation：GFSK, π/4 DQPSK, 8DPSKBluetooth frequency：2.400 GHz- 2.4835 GHzBluetooth specification：A2DP 1.3, AVRCP 1.6type of battery：Lithium-ion polymer battery (2.7Wh)Charging time：2.5 hoursMusic playing time：Up to 5 hours (depending on volume and audio content)Dimensions (width x height x thickness)：87.5×75×41.3 mmWeight：209g