La description

CSR+ Bluetooth V2.1+ Mic
Bluetooth Specification: V2.1 + EDR
Hands-free function: Yes
Frequency Response: *0HZ**0K HZ             Charging voltage: DC 5V
RF Range: *0M    Loudspeaker Output: 4Ω3W*2
SNR: ≥*5±2dB  Battery Capacity: Rechargeable Built-in **0mAh lithium battery
Weight: **5g      Product dimension: **6**3**8mm
Charging Time: 3H   Playback Time: >6H
Accessories: USB cable, Line-in cable, User manual
1.Conform to Bluetooth V2.1 + EDR
2.Support hand- free calls, and echo weakening
3.High quality audio A2DP V1.2
4.3W stereo output, and high-level sound quality
5. Support line-in function
6.Transmission distance: *0M
7.Built-in **0mA lithium battery, and playing time over 6 hours
8.Accessories: USB cable, User manual
9、Able to play music via Bluetooth, with s to Vol+/ Vol-/Play/Pause.

Packing:
Meausre of Box: *2.4*8.8*6.5cm
Carton Size: *5.5**5**7cm
Carton quantity: *0pcs/Carton
Weight of Carton: *8/KG
Color: 4 white, black, red, blue
Remarks: This packing information is just for your reference, the final packing will be decided by double confirmation with customer's requests.