Features:
100% Brand new and high quality!
Adopt advanced Bluetooth technology
Easy to use， plug and play with speaker audio input line
High sensitivity and high performance chip
Miniaturization and elegance， humanized design for convenient carry
It can be charged directly by power supply or computers via USB cable
It can also work with built-in battery
10m Bluetooth receiving distance

Specifications:
Bluetooth Version: 3.0 EDR compliant
Bluetooth protocol: HSP/HFP/A2DP
Frequency range: 2.4GHZ-2.4835GHZ
Distance: 10M
Charging input voltage: DC 5V
The use of time: 4 hours
Charging Time: 1.5 hours
Size: approx. 4.4 x 2.9 x 1.3cm
Color: Black
Net Weight: 24g

Package includes:
1 x Bluetooth 3.0 Music Receiver 3.5mm Adapter
1 x USB Cable