Complete JBL Synchros S400BT NFC Bluetooth headset Specs
| General Specifications | |
|---|---|
| Special | 
 | 
| Weight (ounces) | 9.7 oz. | 
| Weight (grams) | 275 | 
| Dimensions | 7.5 x 5.7 x 3 | 
| Dimensions mm | 190 x 146 x 77 | 
| Wearing styles | Over-the-head | 
| Main category | NFC Bluetooth headset | 
| Release year | 2014 | 
| Release month | 05 | 
| Audio Features | |
| Speaker diameter | 40 mm | 
| Speaker sensitivity | 115 (at 30mW) | 
| Speaker Frequency Range | 10Hz ? 22kHz, 20Hz?20kHz (dynamic) | 
| Sound Quality | AptX | 
| Echo cancellation |  | 
| Microphone Sensitivity | -42dBV/Pa @ 1kHz | 
| Under The Hood | |
| NFC |  | 
| Frequency band | 2.402-2.480GHz | 
| Stand-by Time | 5.4 weeks (Equivalent to 37.5 days or 900 hours) | 
| Talk time | 15.0 hours (1200 minutes) | 
| Music Playback Time | 15.0 hours (900 minutes) | 
| Battery voltage | 3.7 V | 
| Battery | Lithium polymer | 
| Battery Power | 610mAh | 
| Physical Specs | |
| Width (inches) | 5.7 | 
| Height (inches) | 7.5 | 
| Depth (inches) | 3 | 
| Width (mm) | 146 | 
| Height (mm) | 190 | 
| Depth (mm) | 77 | 
| Connectivity | |
| Bluetooth Technology | 3.0 | 
| Bluetooth Profiles Supported | A2DP V1.2, AVRCP V1.4, HFP V1.6, HSP V1.2 | 
| Other Specs & Features | |
| Available colors | Black, White | 
| Special Included Accessories | 3.5 mm audio cable, USB charging cable, Carry case | 
| Control buttons | Touch controls (advance tracks, adjust volume, play/pause, take calls) | 
| Indicator lights |  (The lights respond intuitively to every adjustment on the touch sensor system) | 
Description:
Aside from echo cancellation, touch controls, and above-average playback and talk times (at 15 and 20 hours, respectively), JBL also equipped the S400BT with a 3.5 mm audio jack that enables it to function both as a wireless and wired Bluetooth headset.
Also called JBL S400BT Stereo.
			
			
 
  					
 				 
 	 
 	 
 	
 
 				 
 





