Description Product details of AWEI Y385 4W Promotional Outdoor Bluetooth Speakers Black Brand: Awei Bluetooth Version: V5.0 Play mode: Bluetooth/TF card, USB mode/TWS mode Speaker specification: 4Ω Speaker power: 4W Charging voltage: 5V-1A Battery capacity: 500mah Working hours: 5-6 hours Charging time: about 1.5-2 hours Two ways to play Bluetooth and TF Card Bluetooth connection, low latency connection stable transmission TF card playback, the signal is not interrupted Charging Interface: Type-C (DC5V, 500MA) Size: 14*11.5*11.5cm