BRAVEN 805 Portable Wireless Bluetooth Speaker [18 Hour Playtime] Built-In 4400 mAh Power Bank Charger - Green/Gray Portable Bluetooth speaker with noise-cancelling speakerphone and 18 hour playtime. 4400mAh portable power bank for power on the go (1A USB output). SRS WOW HD enhances audio performance and bass response. True Wireless left and right stereo pairing with 2nd Brave 8-series speaker. Portable Bluetooth speaker with noise-cancelling speakerphone and 18 hour playtime.^4400 mAh portable power bank for power on the go (1A USB output).^SRS WOW HD enhances audio performance and bass response.^True Wireless left and right stereo pairing with 2nd Braven 8-series speaker.