sylvania 12ax7

Sentey® Bluetooth Speaker 4.0 B-Trek S8 (Black) up to 8 Hours - Built-in Mic for Handsfree- 10 Meter - 33 Foot Range - Rechargeable Lithium Ion Battery - Wireless - Portable Size - AUX Line in Allows Music Playback From Various Sources / Works for iPhone, iPad Mini, iPad 4/3/2, iTouch, Blackberry, Nexus, Samsung and Other Smart Phones and Mp3 Players