Introdution: 
The SR-S2021RAMEN is design for Bluetooth® v4.1function and
backward compatible with BT3.0, 2.0 and 1.2. It is small size 7x32mm
for headset application.
It supports following profiles:
Hands Free 1.6 / Headset 1.1 / A2DP 1.2 / AVRCP 1.5 / SPP 1.2

 Main features: 
- CHIP SET: ISSC2021S
- Bluetooth Version : V4.1+EDR
- Frequency Band: 2.402GHz~2.480GHz ISM Band
- RF transmitter output power:2dBm(typ.)
- Support 64 kb/s A-Law or -Law PCM format, or CVSD (Continuous Variable Slope
Delta Modulation) for SCO channel operation.
- Echo cancelation
- SBC and optional AAC decoding
- 20 bit codec , 98dB SNR DAC playback , Mono microphone input
- Integrate headphone amplifier for 16/32Ω speakers
- Built-in Lithium-ion battery charger to 350mA
-Three LED drivers
- Build-in 128Kb EEPROM
- Support to connect to two hosts ( phones, tablets…) with HFP or A2DP profiles simultaneously
- Build-in four languages (Chinese/ English/ Spanish/ French) voice prompts and 20 events for each one
- Integrated Mic

Application:
- Bluetooth Stereo headphone
- Bluetooth Stereo headset
 

Q1:Are you manufacture or trading company?
A1:We are a professional manufacture specialize in fire alarm products.

Q2:What is the moq?
A2:As usual,there is ready stock for our regular & hot selling models.
So any order quantity is welcome.

Q3:Can I customize LOGO and customized functions?
A3:Yes you can. Packaging, products, instructions can be printed logo. and functions we have professional R&D team to support best service.

Q4:How about the quality of your products?
A4:Our raw materials are purchased from qualified suppliers.

Q5:How long is the warranty time of the products?
A5:The warranty period is 2 years from the factory,if there are individual quality problems,
we will replenish the customer in the next batch of orders.