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2. Philips BT50 2W Bluetooth Speaker
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4. F&D W4 3W Bluetooth Speaker
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6. Artis BT90 Bluetooth Speaker
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8. boAt Stone 650 10W Bluetooth Speaker
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General

Sales Package	Speaker, Manual, USB Charger	PORTABLE SPEKAR	Bluetooth Speaker, Charging cable, Aux Cable, User Manual, Holding StrapView More...	Speaker, USB Cable, manual, warranty card
Model Name	BT50B/00	W4	BT-90 Wireless Portable Bluetooth Speaker With USB / MICRO SD CARD / FM / AUX INView More...	Stone 650
Type	Mobile/Tablet Speaker	Mobile/Tablet Speaker	Mobile/Tablet Speaker	Mobile/Tablet Speaker
Portable	Yes	Yes
Bluetooth	Yes	Yes	Yes	Yes
Memory Card Slot	No	No	Yes	Yes
Configuration	Mono	Mono	Stereo	Stereo
Power Source	USB Chargeable	Battery	Micro USB	Battery
Power Output (RMS)	2 W	3 W	3 W	10 W
Frequency Response		80Hz-20KHz	20-100 Hz	2.4GHz-2.480GHz
Impedance		NA	6 Ohms (Satellite)	4 Ohms
Color	Black	Black	Black	Red
Wired/Wireless	Wired & Wireless		Wireless	Wireless
Wall Mountable Satellite			No
Outdoor Usage	Yes		Yes
Built-in Fm Radio			Yes

Product Details

Configuration	Mono Channel	Mono Channel	Stereo Channel	Stereo Channel
Compatible Devices	Mobile, Tablet		All Bluetooth Enabled Devices: phones, Tablets etc., Smartphones, Tablets, Laptops, PC, BT Enabled TVView More...	Mobile, Laptops, Tablets
Battery Capacity			1500 mAh
Bluetooth Range	10 m		10 m
Headphone Jack	Yes		Yes
Battery	Built-in Lithium Polymer, Use Time 6 hr		Lithium Polymer, Use Time 5 hr
Bluetooth	V2.1, V3, V4 withA2DP, AVRCP, HFP		2.1 withA2DP
Charging Time			1 hr
Driver Type	1 Satellite		2 Satellites
Connector Type	USB Cable		Micro USB
USB Ports			1 USB Ports
Memory Card Supported			Micro SD, TF Card	Yes

Dimensions

Width	6.1 cm	5.2 cm	8 cm	19.1 cm
Height	7.6 cm	5.2 cm	9 cm	7 cm
Depth	6.1 cm	5.2 cm	20 cm	7 cm
Satellite Width	610 mm
Satellite Height	760 mm
Satellite Depth	610 mm
Satellite Weight	90 g

Warranty

Warranty Service Type	Philips Toll Free no : 1800-425-6396 , Customer Needs to Carry the Product to the Nearby Authorized Service Center to Get the Product Repaired or Inspected.View More...		Service centre walk in
Warranty Summary	1 Year Warranty		Service centre walk in	1 Year Warranty Provided by the Manufacturer from Date of  PurchaseView More...
Covered in Warranty			Main Speaker	Manufacturuing Defects
Not Covered in Warranty			Accesories	Physical and Accidental Damage
Domestic Warranty			1 Year

Other Details

Technology Used	Wireless Technology		A2DP Bluetooth
Power Input			Micro USB 5V/1A
Other Features	Dimensions: 6.1 (W) x 6.1 (D) x 7.6 (H) cm, Weight: 0.09 kg, USB Charging, Wireless Music Streaming via Bluetooth, Compatibility (iPad: iPad 1, iPad 2, New iPad, iPad mini, iPad with Retina Display, iPhone: iPhone 3, iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S, iPod Touch: 3rd Generation or Later, Android Tablets and Smartphones: With Android 2.1 and Bluetooth 2.1 or Above, Work with: Bluetooth 4.0 or Below, Other Bluetooth Enabled Device), Bluetooth Range: Line of Sight (10 m)View More...
Sensitivity			95 dB
Controls			On/Off, Previous Song/ Volume Low, Next Song/ Volume high, Play/Pause, ModeView More...
Driver Size	Speaker Driver: 1 x 1.5 inch		1.5 inch Satellite
Chassis Material			Yes, Plastic Chassis
Other System Requirements			Bluetooth, USB input, Aux cable for FM, Memory Card

Audio Features

Other Audio Features	Advanced Audio Performance, Anti-clipping Function for Loud, Distortion Free Music, Sound System: Mono, Audio-in (3.5 mm) for Easy Connection to Almost Any Electronic Device, Speaker Driver: 1 x 1.5 inchView More...
Signal to Noise Ratio			85 dB
Amplifier			Yes, Built in
Distortion			0.1% at 1W