Tronsmart T6 Plus Upgraded Edition SoundPulse Portable Bluetooth Speaker 40W with Tri-Bass Effects, 6600mAh Powerbank, IPX6 Waterproof, TWS, NFC, 15H Playtime Black

Bluetooth Version 5.0

Bluetooth profile: A2DP V1.3, ACRCP V1.4, HFP V1.6

Bluetooth transmission: Up to 20m/66ft (open area)

Power supply: DC 5V/3A, via USB-C port

Frequency range: 20Hz – 16000Hz

Battery: Built-in lithium battery, 3300mAh x 2

Playtime: Up to 15 hours (around 65 dB)

Talk time: Up to 20 hours (on a 70% volume)

Standby: About 24 months

Charging time: 3 – 5 hours