HiFuture Lino S Wireless Portable 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 16 kHz (±6 dB) Speaker diameter: 52 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)