Technical Specification:

Type: Portable Bluetooth Speaker
Signal To Noise Ratio: ≥80dB
Frequency: 70Hz - 20kHz
Weight: 515gm
Color: Regular
Wireless Bluetooth Streaming 
IPX7 Waterproof
Speakerphone 
JBL Bass Radiator
Colour: Black
Bluetooth Version: 4.2, A2DP V1.3, AVRCP V1.6, HFP V1.6, HSP V1.2
Bluetooth Transmitter Modulation: GFSK, Π/4-DQPSK, 8DPSK, 
Bluetooth Transmitter Power: 0 - 9dBm

Features:

Wirelessly connect up to 2 smartphones or tablets to the speaker and take turns playing impressive stereo sound
Built-in 3000mAh rechargeable li-ion battery Supports up to 12 hours of playtime. 
Charging time (hrs): 3.5
Ipx7 waterproof means no more worrying about rain or spills; you can even submerge flip 4 in water
JBL connect+ allows you to Link more than 100 JBL connect+ enabled speakers together to amplify the party
Dual external passive radiators demonstrate just how powerful your speaker is.
Bluetooth version:4.2
Product Height: 2.7 inches
Product Width: 6.9 inches
Product Depth: 2.8 inches