General Features:

• Wireless Bluetooth Streaming: Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns enjoying powerful sound
• IPX7 waterproof: Take the Charge 4 to the beach or the pool without worrying about spills or even submersion in water
• JBL Connect+ : Amplify your listening experience to epic levels and rock the party perfectly by wirelessly connecting more than 100 JBL Connect+ enabled speakers
• JBL Bass Radiator: Dual passive radiators deliver powerful, ear-catching JBL sound that resonates loud and clear.
• Durable fabric material and rugged rubber housing allows your speaker to outlast all of your adventures
• Authorized Internet Dealer
• 1-year Manufacturer's Warranty

Accommodations:

• Waterproof: Yes
• Powerbank: Yes
• Voice Assistant integration: No
• JBL Connect+: Yes
• Speakerphone: No
• 3.5 mm audio cable Input: Yes
• Auto-power off: Yes

What’s in the box!

• 1 x JBL Charge 4
• 1 x Type C USB cable
• 1 x Quick Start Guide
• 1 x Warranty Card
• 1 x Safety Sheet

The fine details:

• Bluetooth® version: 4.2
• Support: A2DP V1.3, AVRCP V1.6
• Transducer: 50 x 90mm
• Rated power: 30W RMS
• Frequency response: 60Hz–20kHz
• Signal-to-noise ratio: >80dB
• Battery type: Lithium-ion Polymer 27Wh (Equivalent to 3.6V 7800mAh)
• Battery charge time: 4 hours (5V/2.3A)
• Battery capacity (mAh): 7,500
• Music play time: up to 20 hours (varies by volume level and audio content)
• USB Charge Out: 5V/2A (maximum)
• Bluetooth® transmitter power: 0-20dBm
• Bluetooth® transmitter frequency range: 2.402 – 2.480GHz
• Bluetooth® transmitter modulation: GFSK, π/4 DQPSK, 8DPSK
• Dimension (W × D × H): 220 x 95 x 93mm
• Weight: 965g