HiFuture Ascendo Compact Wireless speaker

Bluetooth Version: Bluetooth V5.3 Bluetooth Chipset AC6966B4 + ACM8615M Bluetooth Profile HFP 1.7/A2DP 1.3/AVRCP 1.6 Playing Mode Mono or TWS Mode Waterproof IPX7 Dual EQ Support: General & Bass Boost optional Wireless Range: 10 metres (Free Space) Frequency Response: 90Hz to 16KHz (±6dB) Speaker diameter: 52 mm Speaker impedance 4 ohms (±15%) Speaker Driver Power Handling: 20W*1 SPL 81dB /1m/1W Charging Voltage & Current: DC5V@2A SNR >= 78 dB THD+N <= 1% (8 W/1 kHz)