Sony XS-XB6941 4-Way Speaker (Black)

Nominal power – 50 watts, RMS peak – 400 watts, 3-way 6×9 inches oval
Designed for the young generation to provide energetic listening experience
MMM cone rubber coated cloth surround, Impedance: 4 OHM
Frequency range: 31Hz ～ 35,000Hz（－20dB）

Long Battery Life : Battery life up to 16 hours for long listening hours
Extra Bass : Get things going with EXTRA BASS. A passive radiator works with the mono speaker to enhance low-end tones, giving bass a boost despite the compact size
Totally waterproof : With an IP67 rating, the speaker can survive being dropped in water, so the odd rain shower or accidental spillage won’t pose any problems.
Totally dustproof : Thanks to the IP67 rating, you can take your speaker to the pool or wherever you like. The speaker will keep on playing, no matter how dusty the surface.
Built-In Mic : Built-in mic for hands free calling
Usage : Supplied detachable strap for easy ususage
Small and light design : The SRS-XB12 is compact, wireless and made to go with you anywhere. With a detachable strap you can easily hang it up and keep your music going on the move.

Pack of 4 speakers
3-way coaxial/full range
Multilayer mica matrix cone
Frequency Response – 30 Hz to 18 kHz