Logitech Ultimate Ears UE Boom Black $124.78 @ PC Byte (eBay)

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NB: There are a few other stores that have the same price on their E-bay store.

WIRELESS CAPABILITIES:

Pair up to 8 Bluetooth® enabled source devices - Connect up to two source devices at the same time.
Wirelessly play (stream) to 2 UE BOOMs from one Source.
Mobile range of play is up to 15m (50 ft).
NFC (passive) enabled - (works with active NFC enabled source devices * Android Jellybean and higher).

AUDIO:

Maximum Sound Level: 88dBA
Frequency Range: 90Hz - 20kHz
Drivers: Two 1.5", 4 Ohm Drivers; Two 2" Passive Radiators

POWER:

Rechargeable Lithium-Ion Battery for up to 15 hours of battery life between Micro USB charges.
Actual battery life will vary with use, settings and environmental conditions.
Rechargeable batteries have a limited number of charge cycles.
Charge time: 3.4 hours