XU07-S:

Features:

100% Brand new and high quality!
Works with the speaker which has 3.5mm line-in jack and play music from all devices enabled with A2DP stereo Bluetooth， such as for iPad.
3.5mm plug.
Up to 10 meters transmitter distance.
Keep working while charging.
Built-in rechargeable lithium-ion battery.
Compact and lightweight.
Low power consumption and long continuous working time.
Plug and play， no driver needed.

Specifications:
Frequency range: 2.4GHZ-2.4835GHZ
Battery capacity: 250MA
Charging current: 150MA
Charging time: 2H ~ 3H
Standby time: about 720 hours
Operating voltage: 3.3 ~ 4.2V
Working current: 3.7V/30mA
Working hours: 5-8 hours
Size: 45*32*8MM

Package included:
1 x New Bluetooth HiFi Audio Adapter A2DP Bluetooth Transmitter Wireless Stereo Speaker
1 x USB charging cable
1 x User manual

XU07 R:

Features:
100% Brand new and high quality!
Works with the speaker which has 3.5mm line-in jack and play music from all devices enabled with A2DP stereo Bluetooth ， such as for iPad ， for iPod touch ， for iPhone ， other Bluetooth cell phones ， Bluetooth notebook ， etc.
3.5mm plug
Up to 10 meters transmitter distance.
Keep working while charging.
Built-in rechargeable lithium-ion battery.
Compact and lightweight.
Low power consumption and long continuous working time
Plug and play， no driver needed.

Specifications:
Standard: 3.5mm audio jack
Bluetooth version: Bluetooth 4.0 V2.1+EDR
Bluetooth profiles: A2DP and AVRCP
Bluetooth frequency range: 2 .4GHz-2.4835GHz
Working time: Up to 10 hours
Charging time: About 2 hours
Receiving sensitivity: -74±4dB
Effective range: Up to 10m
Charging input voltage: DC 5V

Package included:
1 x HiFi Wireless Bluetooth 3.5mm Audio Stereo Music Home Car Receiver Adapter A2DP
1 x USB charging cable
1 x User manual