主题：【求助】Sony DR-BT21IK -- qianji

有人用过这个吗？

Weights and Measurements

Weight (Approx.) : 78g (included rechargeable battery) (DR-BT22K/B)Approx 6g (TMR-BT8IP)

General

Function : SBC (TMR-BT8IP)

Type of Use : Open air, dynamic (DR-BT22K/B) Modulalation method - FHSS (TMR-BT8IP)

Audio

Band : 2.4GHz band(2.4000GHz-2.4835GHz) (DR-BT22K/B)

Driver Unit : 30mm diameter, dome type (DR-BT22K/B)

Frequency Range : 100-4,000Hz (DR-BT22K/B) 2.4000GHz-2.4835GHz (2.4GHz band) (TMR-BT8IP)

Frequency Response : 14-24,000Hz (DR-BT22K/B)

Transmitter : Transmission Range: 20-20,000Hz (A2DP)(Sampling Frequency44.1kHz) (TMR-BT8IP)

Hardware

Communication : Line of sight approx. 10m (30ft) (TMR-BT8IP)

Inputs and Outputs

Accessory Terminal : iPod connector (30pin) (TMR-BT8IP)

Output(s) : Bluetooth power class 2 (DR-BT22K/B) Bluetooth power class 2 (TMR-BT8IP)

Power

Battery Charging (Approx) : 3 Hours (DR-BT22K/B)

Battery Life (Approx) : 11 Hours (Continuous music play back time), 100 Hours (Continuous communiation time), 100 Hours (Waiting time) (DR-BT22K/B)

Wireless/Networking

Bluetooth Technology : Compatible profiles: A2DP, AVRCP (TMR-BT8IP)